JPH08284825A - Rotary compressor - Google Patents
Rotary compressorInfo
- Publication number
- JPH08284825A JPH08284825A JP8385595A JP8385595A JPH08284825A JP H08284825 A JPH08284825 A JP H08284825A JP 8385595 A JP8385595 A JP 8385595A JP 8385595 A JP8385595 A JP 8385595A JP H08284825 A JPH08284825 A JP H08284825A
- Authority
- JP
- Japan
- Prior art keywords
- iron
- crn
- crystal
- rotary compressor
- compression mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013078 crystal Substances 0.000 claims abstract description 93
- 150000001875 compounds Chemical class 0.000 claims abstract description 56
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000003507 refrigerant Substances 0.000 claims abstract description 19
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011651 chromium Substances 0.000 claims description 106
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 74
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 49
- 229910052804 chromium Inorganic materials 0.000 claims description 39
- 229910052757 nitrogen Inorganic materials 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 38
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 37
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 229910052742 iron Inorganic materials 0.000 claims description 24
- 239000010721 machine oil Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 14
- 238000002441 X-ray diffraction Methods 0.000 claims description 8
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 40
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 6
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 6
- 125000004429 atom Chemical group 0.000 description 5
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 4
- 239000002356 single layer Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 125000004773 chlorofluoromethyl group Chemical group [H]C(F)(Cl)* 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 229940042935 dichlorodifluoromethane Drugs 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、冷凍サイクル等に使用
する回転式圧縮機の摺動部品の摺動部分への表面処理に
関し、特に信頼性の向上に係わるものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment of a sliding part of a sliding part of a rotary compressor used in a refrigerating cycle or the like, and particularly to improvement of reliability.
【０００２】[0002]
【従来の技術】冷凍サイクル等に使用する回転式圧縮機
には従来から冷媒としてＣＦＣ−１２（ジクロロ・ジフ
ロロ・メタン、ＣＣｌ2Ｆ2）やＨＣＦＣ−２２（モノク
ロロ・ジフロロ・メタン、ＣＨＣｌＦ2）が主に使用さ
れてきた。 2. Description of the Related Art CFC-12 (dichloro difluoro methane, CCl 2 F 2 ) and HCFC-22 (monochloro difluoro methane, CHClF 2 ) are conventionally used as refrigerants in rotary compressors used in refrigeration cycles and the like. Has mainly been used.
【０００３】近年、オゾン層の破壊による人体や生物系
に対する影響の観点からＣＦＣ−１２が使用規制の対象
となっていおり、その製造は１９９５年末で停止する。In recent years, CFC-12 has been subject to use restrictions from the viewpoint of the effect on the human body and biological systems due to the destruction of the ozone layer, and its production will stop at the end of 1995.
【０００４】そこで代わりとなる代替冷媒が必要とな
り、ＣＦＣ−１２の代替冷媒として分子内に塩素（Ｃ
ｌ）原子を含まないＨＦＣ−１３４ａ（１，１，１，−
テトラ・フロロ・エタン、ＣＨＦ2ＣＦ3）等の冷媒が開
発された。Therefore, an alternative refrigerant as an alternative is needed, and chlorine (C) is included in the molecule as an alternative refrigerant for CFC-12.
l) HFC-134a (1,1,1,-
Refrigerants such as tetra-fluoro-ethane and CHF 2 CF 3 ) have been developed.
【０００５】ＨＦＣ−１３４ａはオゾン破壊係数（ＯＤ
Ｐ）が０であり、温度−圧力特性等の熱物性がＣＦＣ−
１２と類似しているため、従来からＣＦＣ−１２を用い
ていた冷蔵庫、除湿機、カーエアコン等の冷凍装置や冷
媒圧縮機の構造を大きく変更することなく実用化出来る
と言われてきた。HFC-134a has an ozone depletion potential (OD
P) is 0, and thermophysical properties such as temperature-pressure characteristics are CFC-
Since it is similar to Ref. 12, it has been said that it can be put to practical use without significantly changing the structure of a refrigerating device such as a refrigerator, a dehumidifier, and a car air conditioner and a refrigerant compressor that have conventionally used CFC-12.
【０００６】しかし、ＨＦＣ−１３４ａは従来のＣＦＣ
−１２の冷凍装置に使用されてきた鉱油やアルキルベン
ゼン等の合成油といった冷凍機油との間にはほとんど相
溶性が無く冷凍サイクル内へ冷凍機油が残留する可能性
がある。However, HFC-134a is a conventional CFC.
There is almost no compatibility with refrigerating machine oils such as mineral oils and synthetic oils such as alkylbenzene that have been used in the -12 refrigerating apparatus, and there is a possibility that the refrigerating machine oil remains in the refrigeration cycle.
【０００７】またＣＦＣ−１２はその分子内に塩素（Ｃ
ｌ）原子を含んでいるため摺動部において金属基材の鉄
（Ｆｅ）原子と反応して自己潤滑性を有し、耐摩耗性に
優れる塩化鉄（ＦｅＣｌｘ）膜を形成した。一方、ＨＦ
Ｃ−１３４ａは塩素原子を含んでいないため塩化鉄膜を
形成しない。CFC-12 has chlorine (C
l) Since it contains atoms, it reacts with iron (Fe) atoms of the metal base material in the sliding portion to form an iron chloride (FeClx) film having self-lubricating properties and excellent wear resistance. On the other hand, HF
Since C-134a contains no chlorine atom, it does not form an iron chloride film.
【０００８】この様な状況では、回転式圧縮機の信頼性
を高めるため妥当な潤滑油を選定することに加えて冷媒
自身の潤滑性を補うために耐摩耗性に優れた摺動材料が
必要である。In such a situation, in addition to selecting a proper lubricating oil in order to enhance the reliability of the rotary compressor, a sliding material having excellent wear resistance is required to supplement the lubricating property of the refrigerant itself. Is.
【０００９】従来の回転式圧縮機としては特開平５−１
８３５７号広報に示されているものがある。ここでは摺
動部の一方が鋳鉄から成り、他方がＰＶＤ法によって形
成されたクロム（Ｃｒ）と窒素（Ｎ）とを主成分とする
化合物層を表面に有する鉄系金属材から成る。As a conventional rotary compressor, Japanese Patent Laid-Open No. 5-1
Some are shown in the 8357 Public Information. Here, one of the sliding parts is made of cast iron, and the other is made of an iron-based metal material having a compound layer containing chromium (Cr) and nitrogen (N) as main components formed by the PVD method on the surface.
【００１０】以下図面を参照しながら上記従来の圧縮機
の一例について説明する。図２は従来の回転式圧縮機の
縦断面図であり、図３は圧縮機構の要部断面図である。An example of the conventional compressor will be described below with reference to the drawings. 2 is a vertical cross-sectional view of a conventional rotary compressor, and FIG. 3 is a cross-sectional view of a main part of a compression mechanism.
【００１１】図２、図３において、１は密閉ケーシン
グ、２はステーター、３はローター、４はモーター機構
でありシャフト８を介してシリンダー１０、ローラー１
３、クランク１２、ベーン１４、ベアリング９及び１
１、スプリング１５により構成される圧縮機構５と連結
している。そして、摺動部材の一方シリンダー１０は鋳
鉄より成り、他方のベーン１４はＰＶＤ法によって形成
されたクロム（Ｃｒ）と窒素（Ｎ）とを主成分とする化
合物層を表面に有する鉄系金属材から成る。１６及び１
７はシリンダー１０内でローラー１３とクランク１２と
ベーン１４により構成される吸入室と吐出室である。In FIGS. 2 and 3, 1 is a closed casing, 2 is a stator, 3 is a rotor, 4 is a motor mechanism, and a cylinder 10 and a roller 1 are provided via a shaft 8.
3, crank 12, vane 14, bearings 9 and 1
1 and the compression mechanism 5 including the spring 15. Then, one cylinder 10 of the sliding member is made of cast iron, and the other vane 14 is an iron-based metal material having a compound layer containing chromium (Cr) and nitrogen (N) as main components formed by the PVD method on the surface. Consists of. 16 and 1
Reference numeral 7 denotes a suction chamber and a discharge chamber, which are formed by a roller 13, a crank 12 and a vane 14 in the cylinder 10.
【００１２】６は吸入管でシリンダー１０の吸入口を介
して吸入室１６と連通している。１９は吐出口で密閉ケ
ーシング１内に連通している。２０はケーシング内の冷
凍機油である。A suction pipe 6 communicates with a suction chamber 16 through a suction port of the cylinder 10. A discharge port 19 communicates with the inside of the closed casing 1. 20 is refrigerating machine oil in the casing.
【００１３】７は吐出管、１８は吸入管、１９は吐出口
である。上記従来の技術はＰＶＤ法によって形成された
クロム（Ｃｒ）と窒素（Ｎ）とを主成分とする化合物層
を表面に有する鉄系金属材から成ることを特徴としてお
り、クロム（Ｃｒ）と窒素（Ｎ）を主成分とする化合物
が全て耐摩耗性を向上させる物であるとして使われてい
る。Reference numeral 7 is a discharge pipe, 18 is a suction pipe, and 19 is a discharge port. The above-mentioned conventional technique is characterized by comprising an iron-based metal material having on its surface a compound layer formed by the PVD method and containing chromium (Cr) and nitrogen (N) as main components. All of the compounds containing (N) as the main component are used as substances that improve wear resistance.
【００１４】[0014]
【発明が解決しようとする課題】しかしながらＰＶＤ法
によって形成されたクロム（Ｃｒ）と窒素（Ｎ）とを主
成分とする化合物として多くの種類が存在する。また、
上記化合物の種類によって耐摩耗性が異なることより、
従来の技術ではクロム（Ｃｒ）と窒素（Ｎ）を主成分と
する化合物の種類が特定されておらずその効果は不明で
あるとの課題があった。However, there are many kinds of compounds containing chromium (Cr) and nitrogen (N) formed by the PVD method as main components. Also,
From the fact that the wear resistance varies depending on the type of the compound,
The conventional technique has a problem that the types of compounds containing chromium (Cr) and nitrogen (N) as main components are not specified, and the effect is unknown.
【００１５】本発明は、上記従来の課題を解決するもの
であり、信頼性の向上を目的としている。The present invention solves the above-mentioned conventional problems and aims at improving reliability.
【００１６】[0016]
【課題を解決するための手段】この目的を達成するため
本発明は密閉された容器内に圧縮機構と、冷媒と、冷凍
機油とを内装した密閉型回転式圧縮機において、前記圧
縮機構における摺動材料の一方が鋳鉄、鉄系燒結材料ま
たはアルミニウム複合材料から成り、他方がＰＶＤ法に
より形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層
でその組成がＣｒＮ結晶単独である化合物層を表面に有
する鉄系材料から成ることを特徴する。To achieve this object, the present invention relates to a hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are housed in a hermetically sealed container. One of the moving materials is a cast iron, an iron-based sintered material, or an aluminum composite material, and the other is a compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method, and the composition is a CrN crystal alone. It is characterized by being made of an iron-based material having a surface.
【００１７】また、密閉された容器内に圧縮機構と、冷
媒と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物層でその組成がＣｒＮ結晶とＣｒ2Ｎ結晶の混
合でＣｒＮ結晶が全体の５０％以上である化合物層を表
面に有する鉄系材料から成ることを特徴とする。Further, in a hermetic rotary compressor in which a compression mechanism, a refrigerant and a refrigerating machine oil are housed in a hermetically sealed container, one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The compound layer is composed of an iron-based material having on its surface a compound layer whose composition is a mixture of CrN crystals and Cr 2 N crystals and is 50% or more of the entire CrN crystals.
【００１８】また、密閉された容器内に圧縮機構と、冷
媒と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物の結晶がＣｒＮとＣｒ2Ｎの混合結晶系でＸ線
回折試験によるＣｒＮの最大結晶配向強度に対するＣｒ
2Ｎの最大結晶配向強度の比率が８０％以下の混合結晶
構造である化合物層を表面に有する鉄系材料から成るこ
とを特徴とする。Further, in a hermetic rotary compressor in which a compression mechanism, a refrigerant and a refrigerating machine oil are housed in a hermetically sealed container, one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The crystal of the compound is a mixed crystal system of CrN and Cr 2 N, and Cr is the maximum crystal orientation strength of CrN by X-ray diffraction test.
It is characterized by being composed of an iron-based material having on its surface a compound layer having a mixed crystal structure in which the ratio of the maximum crystal orientation strength of 2 N is 80% or less.
【００１９】また、密閉された容器内に圧縮機構と、冷
媒と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物の結晶がＣｒＮとＣｒ2Ｎの混合結晶系でＸ線
回折試験によるＣｒＮ結晶構造のミラー指数（２００）
面の結晶配向強度がＣｒＮ結晶構造及びＣｒ2Ｎ結晶構
造における結晶配向強度の総和の３０％以上である化合
物層を表面に有する鉄系材料から成ることを特徴とす
る。Further, in a hermetic rotary compressor in which a compression mechanism, a refrigerant and a refrigerating machine oil are contained in a hermetically sealed container, one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The crystal of the compound of CrN is a mixed crystal system of CrN and Cr 2 N, and the Miller index of the CrN crystal structure by the X-ray diffraction test (200)
It is characterized by being composed of an iron-based material having a compound layer on the surface of which the crystal orientation strength of the plane is 30% or more of the sum of the crystal orientation strengths in the CrN crystal structure and the Cr 2 N crystal structure.
【００２０】また、密閉された容器内に圧縮機構と、冷
媒と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物の結晶構造が立方晶単独であり、その格子定数
ａが０．４１６ｎｍ以上である化合物層を表面に有する
鉄系材料から成ることを特徴とする。Further, in a hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are contained in a hermetically sealed container, one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The compound is a cubic crystal alone, and is composed of an iron-based material having a compound layer having a lattice constant a of 0.416 nm or more on its surface.
【００２１】また、密閉された容器内に圧縮機構と、冷
媒と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物で格子定数ａが０．４１６ｎｍ以上の立方晶と
六方晶の混合結晶構造である化合物層を表面に有する鉄
系材料から成ることを特徴とする。Further, in a hermetic rotary compressor in which a compression mechanism, a refrigerant, and a refrigerating machine oil are contained in a hermetically sealed container, one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The compound is a ferrous material having on its surface a compound layer having a cubic crystal and hexagonal mixed crystal structure having a lattice constant a of 0.416 nm or more.
【００２２】[0022]
【作用】本発明に係わるＰＶＤ法によって形成されたク
ロム（Ｃｒ）と窒素（Ｎ）の化合物層は、組成をＣｒＮ
単独にすることにより耐摩耗性が向上する。The compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention has a composition of CrN.
Wear resistance is improved by making them independent.
【００２３】また、さらに耐摩耗性に劣るＣｒ2Ｎの含
有量を規制することにより耐摩耗性を低下させず強度が
向上する。Further, by restricting the content of Cr 2 N, which is further inferior in wear resistance, the wear resistance is not lowered and the strength is improved.
【００２４】また、Ｘ線回折試験により求めたＰＶＤ法
によって形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合
物層のＣｒＮの最大結晶配向強度に対するＣｒ2Ｎの最
大結晶配向強度の比率を制限することにより耐摩耗性が
向上する。Further, the ratio of the maximum crystallographic orientation strength of Cr 2 N to the maximum crystallographic orientation strength of CrN of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method determined by the X-ray diffraction test is limited. By doing so, the wear resistance is improved.
【００２５】また、Ｘ線回折試験により求めたＰＶＤ法
によって形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合
物層のＣｒＮの（２００）面の結晶配向強度を強くする
ことにより結晶内の滑り強度が増し、はく離強度が上が
り、耐摩耗性が向上する。Further, by increasing the crystal orientation strength of the (200) plane of CrN of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method obtained by the X-ray diffraction test, the slip in the crystal is increased. Strength increases, peel strength increases, and wear resistance improves.
【００２６】また、ＰＶＤ法によって形成されたクロム
（Ｃｒ）と窒素（Ｎ）の化合物層で結晶構造が立方晶の
格子定数ａの大きさを規定することにより格子内のひず
みが大きくなることにより硬度が高くなり、耐摩耗性が
向上する。Further, since the crystal structure of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method defines the size of the cubic lattice constant a, the strain in the lattice increases. Hardness increases and wear resistance improves.
【００２７】また、さらに六方晶と混合することにより
単位格子内の原子数が増加し面密度が大きくなり耐摩耗
性が向上する。Further, by further mixing with a hexagonal crystal, the number of atoms in the unit cell increases, the areal density increases, and the wear resistance improves.
【００２８】[0028]
【実施例】以下本発明によるＰＶＤ法によって形成され
たクロム（Ｃｒ）と窒素（Ｎ）の化合物層の第一の実施
例について図１を参照しながら説明する。ＰＶＤ法によ
る化合物層は図２及び図３のベーン１４の表面に実施し
て行った。摺動相手のローラー１３には合金鋳鉄材を用
いた。EXAMPLE A first example of a compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention will be described below with reference to FIG. The compound layer by the PVD method was performed on the surface of the vane 14 of FIGS. 2 and 3. An alloy cast iron material was used for the roller 13 as a sliding partner.
【００２９】図１は本発明によるＰＶＤ法によって形成
されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層の組成と
耐摩耗性の関係を整理したものである。FIG. 1 shows the relationship between the composition and wear resistance of a compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention.
【００３０】図１の単独組成であるＣｒＮ結晶単独層と
Ｃｒ2Ｎ結晶単独層の相対比較の摩耗率を比べると明か
にＣｒ2Ｎ結晶単独層の方が耐摩耗性が無いといえる。
従ってＰＶＤ法によって形成されたクロム（Ｃｒ）と窒
素（Ｎ）の化合物層の組成をＣｒＮ結晶単独層にするこ
とにより耐摩耗性を向上できる。By comparing the relative wear rates of the CrN crystal single layer and the Cr 2 N crystal single layer having the single compositions shown in FIG. 1, it can be clearly seen that the Cr 2 N crystal single layer has less wear resistance.
Therefore, wear resistance can be improved by making the composition of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method a single layer of CrN crystal.
【００３１】また、ＣｒＮ結晶とＣｒ2Ｎ結晶との混合
組成にすることにより強度を向上させることができ、図
１のＣｒＮ＋Ｃｒ2Ｎ複合層の相対比較の摩耗量におい
て、Ｃｒ2Ｎの量が５０％以下のものと６０％以上のも
のを比べると明かに５０以下のものの方が耐摩耗性が良
好であることより、Ｃｒ2Ｎの量を５０％以下にするこ
とにより耐摩耗性も向上できる。Further, the strength can be improved by using a mixed composition of the CrN crystal and the Cr 2 N crystal, and the amount of Cr 2 N in the relative comparison wear amount of the CrN + Cr 2 N composite layer in FIG. Compared with those of 50% or less and those of 60% or more, it is clear that the one with 50 or less has better wear resistance. Therefore, the wear resistance is also improved by setting the amount of Cr 2 N to 50% or less. it can.
【００３２】以上のように本発明によるＰＶＤ法によっ
て形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層の
組成がＣｒＮ結晶単独である化合物層であるので、耐摩
耗性が向上する。As described above, since the composition layer of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention is a compound layer containing only CrN crystal, abrasion resistance is improved.
【００３３】また、Ｃｒ2Ｎの量が５０％以下であるの
で、耐摩耗性及び強度が向上する。次に本発明によるＰ
ＶＤ法によって形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物層の第二の実施例について図４、図５を参照し
ながら説明する。ＰＶＤ法による化合物層は図２及び図
３のベーン１４の表面に実施して行った。摺動相手のロ
ーラー１３には合金鋳鉄材を用いた。Further, since the amount of Cr 2 N is 50% or less, wear resistance and strength are improved. Next, P according to the present invention
Chromium (Cr) and nitrogen (N) formed by VD method
A second embodiment of the compound layer will be described with reference to FIGS. The compound layer by the PVD method was performed on the surface of the vane 14 of FIGS. 2 and 3. An alloy cast iron material was used for the roller 13 as a sliding partner.
【００３４】図４は本発明によるＰＶＤ法によって形成
されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層のＣｒＮ
の最大結晶配向強度に対するＣｒ2Ｎの最大結晶配向強
度の比率と耐摩耗性の関係を整理したものであり、図５
はＣｒＮ結晶構造及びＣｒ2Ｎ結晶構造における結晶配
向強度の総和に対するＣｒＮ結晶構造のミラー指数（２
００）面の結晶配向強度の比率と耐摩耗性の関係を整理
したものである。FIG. 4 shows CrN of a compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention.
5 is a summary of the relationship between the wear resistance and the ratio of the maximum crystallographic orientation strength of Cr 2 N to the maximum crystallographic orientation strength of Cr.
Is the Miller index (2) of the CrN crystal structure with respect to the sum of the crystal orientation strengths in the CrN crystal structure and the Cr 2 N crystal structure.
The relationship between the ratio of the crystal orientation strength of the (00) plane and the wear resistance is arranged.
【００３５】図４のＣｒＮの最大結晶配向強度に対する
Ｃｒ2Ｎの最大結晶配向強度の比率が８０％以下のもの
と１００％以上のものを比べると明かに８０％以下のも
のの方が耐摩耗性が良好であることより、ＣｒＮの最大
結晶配向強度に対するＣｒ2Ｎの最大結晶配向強度の比
率を８０％以下にすることにより耐摩耗性を向上でき
る。When the ratio of the maximum crystallographic orientation strength of Cr 2 N to the maximum crystallographic orientation strength of CrN in FIG. 4 is 80% or less and that of 100% or more, it is clear that the one having 80% or less has wear resistance. Therefore, the wear resistance can be improved by setting the ratio of the maximum crystal orientation strength of Cr 2 N to the maximum crystal orientation strength of CrN to 80% or less.
【００３６】また、ＣｒＮ結晶構造のミラー指数（２０
０）面の結晶配向強度を強くすることにより結晶内の滑
り強度が増しはく離強度を上げ、耐摩耗性を向上させる
ことができ、図５のＣｒＮ結晶構造及びＣｒ2Ｎ結晶構
造における結晶配向強度の総和に対するＣｒＮ結晶構造
のミラー指数（２００）面の結晶配向強度の比率が３０
％以上のものと２５％以下のものを比べると明かに３０
％以上のものの方が耐摩耗性が良好であることより、Ｃ
ｒＮ結晶構造及びＣｒ2Ｎ結晶構造における結晶配向強
度の総和に対するＣｒＮ結晶構造のミラー指数（２０
０）面の結晶配向強度の比率を３０％以上にすることに
より耐摩耗性を向上できる。The Miller index of the CrN crystal structure (20
By increasing the crystal orientation strength of the (0) plane, the slip strength in the crystal is increased, the peeling strength is increased, and the wear resistance can be improved. The crystal orientation strength in the CrN crystal structure and the Cr 2 N crystal structure in FIG. The ratio of the crystal orientation strength of the Miller index (200) plane of the CrN crystal structure to the sum of
It is clearly 30 when comparing 25% or less with more than 25%
% Or more has better wear resistance, C
Miller index (20) of CrN crystal structure to the sum of crystal orientation strengths in rN crystal structure and Cr 2 N crystal structure
The wear resistance can be improved by setting the ratio of the crystal orientation strength of the 0) plane to 30% or more.
【００３７】以上のように本発明によるＰＶＤ法によっ
て形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層は
ＣｒＮの最大結晶配向強度に対するＣｒ2Ｎの最大結晶
配向強度の比率が８０％以下であるので、耐摩耗性が向
上する。As described above, in the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention, the ratio of the maximum crystal orientation strength of Cr 2 N to the maximum crystal orientation strength of CrN is 80% or less. Therefore, the wear resistance is improved.
【００３８】また、ＣｒＮ結晶構造及びＣｒ2Ｎ結晶構
造における結晶配向強度の総和に対するＣｒＮ結晶構造
のミラー指数（２００）面の結晶配向強度の比率が３０
％以上であるので、耐摩耗性が向上する。The ratio of the crystal orientation strength of the Miller index (200) plane of the CrN crystal structure to the sum of the crystal orientation strengths of the CrN crystal structure and the Cr 2 N crystal structure is 30.
%, The wear resistance is improved.
【００３９】次に本発明によるＰＶＤ法によって形成さ
れたクロム（Ｃｒ）と窒素（Ｎ）の化合物層の第三の実
施例について図６を参照しながら説明する。ＰＶＤ法に
よる化合物層は図２及び図３のベーン１４の表面に実施
して行った。摺動相手のローラー１３には合金鋳鉄材を
用いた。Next, a third embodiment of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention will be described with reference to FIG. The compound layer by the PVD method was performed on the surface of the vane 14 of FIGS. 2 and 3. An alloy cast iron material was used for the roller 13 as a sliding partner.
【００４０】図６は本発明によるＰＶＤ法によって形成
されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層の立方晶
の格子定数ａと耐摩耗性の関係を整理したものである。FIG. 6 is a summary of the relationship between the wear resistance and the cubic lattice constant a of a compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention.
【００４１】一般にクロム（Ｃｒ）と窒素（Ｎ）の化合
物における立方晶の単結晶の格子定数は０．４１３〜
０．４１５ｎｍである。図４の立方晶の格子定数ａが
０．４１６ｎｍ以上のものと０．４１６ｎｍ以下のもの
を比べると明かに０．４１６ｎｍ以上のものの方が耐摩
耗性が良好であることよりＰＶＤ法によって形成された
クロム（Ｃｒ）と窒素（Ｎ）の化合物層において立方晶
の格子定数を０．４１６ｎｍ以上にすることにより格子
内にひずみが生じ、化合物層の硬度を上げ、耐摩耗性を
向上できる。Generally, in a compound of chromium (Cr) and nitrogen (N), the lattice constant of a cubic single crystal is 0.413-.
It is 0.415 nm. A cubic crystal having a lattice constant a of 0.416 nm or more and a crystal lattice of 0.416 nm or less in FIG. 4 clearly shows that the one having a lattice constant a of 0.416 nm or more has better wear resistance and is formed by the PVD method. In the compound layer of chromium (Cr) and nitrogen (N), when the cubic lattice constant is 0.416 nm or more, strain occurs in the lattice, the hardness of the compound layer is increased, and the wear resistance can be improved.
【００４２】また、立方晶と六方晶の結晶構造を混合す
ることにより単位格子内の原子数が増加し面密度が上が
ると共に、六方晶内の原子が立方晶内に入り込み立方晶
の格子定数ａが０．４１６ｎｍ以上となりとなり耐摩耗
性を向上できる。By mixing the cubic and hexagonal crystal structures, the number of atoms in the unit cell increases and the areal density increases, and the atoms in the hexagon enter the cubic and the cubic lattice constant a Is 0.416 nm or more, and wear resistance can be improved.
【００４３】以上のように本発明によるＰＶＤ法によっ
て形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合物層は
立方晶の格子定数ａが０．４１６ｎｍ以上であるので、
耐摩耗性が向上する。As described above, the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method according to the present invention has a cubic lattice constant a of 0.416 nm or more.
Wear resistance is improved.
【００４４】また、六方晶結晶構造との混合構造である
ので耐摩耗性が向上する。Further, since it has a mixed structure with a hexagonal crystal structure, abrasion resistance is improved.
【００４５】[0045]
【発明の効果】以上説明したように本発明は、ＰＶＤ法
によって形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合
物層の組成をＣｒＮ単独にすることにより耐摩耗性を向
上させる。As described above, the present invention improves wear resistance by making CrN alone the composition of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method.
【００４６】また、さらに耐摩耗性に劣るＣｒ2Ｎの含
有量を規制することにより耐摩耗性を低下させず強度を
向上させる。Further, by restricting the content of Cr 2 N, which is inferior in wear resistance, the wear resistance is not lowered and the strength is improved.
【００４７】また、Ｘ線回折試験により求めたＰＶＤ法
によって形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合
物層のＣｒＮの最大結晶配向強度に対するＣｒ2Ｎの最
大結晶配向強度の比率を制限することにより耐摩耗性を
向上させる。Further, the ratio of the maximum crystallographic orientation strength of Cr 2 N to the maximum crystallographic orientation strength of CrN of the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method obtained by the X-ray diffraction test is limited. By doing so, wear resistance is improved.
【００４８】また、Ｘ線回折試験により求めたＰＶＤ法
によって形成されたクロム（Ｃｒ）と窒素（Ｎ）の化合
物層内のＣｒＮの（２００）面の結晶配向強度を強くす
ることにより結晶内の滑り強度が増しはく離強度を上
げ、耐摩耗性を向上させる。Further, by increasing the crystal orientation strength of the (200) plane of CrN in the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method obtained by the X-ray diffraction test, Increases slip strength, peel strength, and wear resistance.
【００４９】また、ＰＶＤ法によって形成されたクロム
（Ｃｒ）と窒素（Ｎ）の化合物層内で結晶構造が立方晶
の格子定数ａの大きさを規定することにより格子内のひ
ずみを大きくし硬度を高くすることにより耐摩耗性を向
上させる。Further, by defining the size of the lattice constant a of a cubic crystal structure in the compound layer of chromium (Cr) and nitrogen (N) formed by the PVD method, the strain in the lattice is increased and the hardness is increased. The wear resistance is improved by increasing.
【００５０】また、さらに六方晶と混合することにより
単位格子内の原子数が増加し面密度が大きくなり耐摩耗
性を向上させ、信頼性を確実なものにさせる。Further, by further mixing with a hexagonal crystal, the number of atoms in the unit cell is increased, the areal density is increased, the wear resistance is improved, and the reliability is secured.
【図１】本発明の化合物層の組成と耐摩耗性の関係を示
す特性図FIG. 1 is a characteristic diagram showing the relationship between the composition of the compound layer of the present invention and wear resistance.
【図２】一般的な回転式圧縮機の縦断面図FIG. 2 is a vertical sectional view of a general rotary compressor.
【図３】図１の一般的な圧縮機構の要部断面図FIG. 3 is a sectional view of a main part of the general compression mechanism shown in FIG.
【図４】本発明の化合物層のＣｒＮの最大結晶配向強度
に対するＣｒ2Ｎの最大結晶配向強度の比率と耐摩耗性
の関係を示す特性図FIG. 4 is a characteristic diagram showing the relationship between the wear resistance and the ratio of the maximum crystallographic orientation strength of Cr 2 N to the maximum crystallographic orientation strength of CrN in the compound layer of the present invention.
【図５】本発明のＣｒＮ結晶構造及びＣｒ2Ｎ結晶構造
における結晶配向強度の総和に対するＣｒＮ結晶構造の
ミラー指数（２００）面の結晶配向強度の比率と耐摩耗
性の関係を示す特性図FIG. 5 is a characteristic diagram showing the relationship between the wear resistance and the ratio of the crystal orientation strength of the Miller index (200) plane of the CrN crystal structure to the total crystal orientation strength in the CrN crystal structure and the Cr 2 N crystal structure of the present invention.
【図６】本発明の化合物層の立方晶の格子定数ａと耐摩
耗性の関係を示すグラフFIG. 6 is a graph showing the relationship between the cubic lattice lattice constant a of the compound layer of the present invention and wear resistance.
１３ ローラー １４ ベーン 13 rollers 14 vanes
Claims (6)
と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物層でその組成がＣｒＮ結晶単独である化合物層
を表面に有する鉄系材料から成ることを特徴とした回転
式圧縮機。1. A hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are contained in a hermetically sealed container, wherein one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
2. A rotary compressor characterized by comprising a ferrous material having on its surface a compound layer of which the composition is CrN crystal alone.
と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物層でその組成がＣｒＮ結晶とＣｒ2Ｎ結晶の混
合でＣｒＮ結晶が全体の５０％以上である化合物層を表
面に有する鉄系材料から成ることを特徴とした回転式圧
縮機。2. A hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are housed in a hermetically sealed container, wherein one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
2. A rotary compressor characterized by comprising an iron-based material having on the surface thereof a compound layer of which the composition is a mixture of CrN crystals and Cr 2 N crystals and the CrN crystals account for 50% or more of the total.
と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物の結晶がＣｒＮとＣｒ2Ｎの混合結晶系でＸ線
回折試験によるＣｒＮの最大結晶配向強度に対するＣｒ
2Ｎの最大結晶配向強度の比率が８０％以下の混合結晶
構造である化合物層を表面に有する鉄系材料から成るこ
とを特徴とした回転式圧縮機。3. A hermetic rotary compressor in which a compression mechanism, a refrigerant, and a refrigerating machine oil are housed in a hermetically sealed container, wherein one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The crystal of the compound is a mixed crystal system of CrN and Cr 2 N, and Cr is the maximum crystal orientation strength of CrN by X-ray diffraction test.
A rotary compressor characterized by being made of an iron-based material having on its surface a compound layer having a mixed crystal structure in which the ratio of the maximum crystal orientation strength of 2 N is 80% or less.
と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物の結晶がＣｒＮとＣｒ2Ｎの混合結晶系でＸ線
回折試験によるＣｒＮ結晶構造のミラー指数（２００）
面の結晶配向強度がＣｒＮ結晶構造及びＣｒ2Ｎ結晶構
造における結晶配向強度の総和の３０％以上である化合
物層を表面に有する鉄系材料から成ることを特徴とした
回転式圧縮機。4. A hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are contained in a hermetically sealed container, wherein one of sliding materials in the compression mechanism is cast iron, iron-based sintered material, or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
The crystal of the compound of CrN is a mixed crystal system of CrN and Cr 2 N, and the Miller index of the CrN crystal structure by the X-ray diffraction test (200)
A rotary compressor characterized by comprising an iron-based material having a compound layer on the surface of which the crystal orientation strength of the plane is 30% or more of the sum of the crystal orientation strengths in the CrN crystal structure and the Cr 2 N crystal structure.
と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物の結晶構造が立方晶単独であり、その格子定数
ａが０．４１６ｎｍ以上である化合物層を表面に有する
鉄系材料から成ることを特徴とした回転式圧縮機。5. A hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are contained in a hermetically sealed container, wherein one of sliding materials in the compression mechanism is cast iron, iron-based sintered material, or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
A rotary compressor characterized in that the compound has a cubic crystal alone and has a compound layer having a lattice constant a of 0.416 nm or more on its surface.
と、冷凍機油とを内装した密閉型回転式圧縮機におい
て、前記圧縮機構における摺動材料の一方が鋳鉄、鉄系
燒結材料またはアルミニウム複合材料から成り、他方が
ＰＶＤ法により形成されたクロム（Ｃｒ）と窒素（Ｎ）
の化合物で格子定数ａが０．４１６ｎｍ以上の立方晶と
六方晶の混合結晶構造である化合物層を表面に有する鉄
系材料から成ることを特徴とした回転式圧縮機。6. A hermetic rotary compressor in which a compression mechanism, a refrigerant, and refrigerating machine oil are contained in a hermetically sealed container, wherein one of sliding materials in the compression mechanism is cast iron, iron-based sintered material or aluminum. Chromium (Cr) and Nitrogen (N) made of PVD method, composed of composite materials
A rotary compressor characterized by comprising an iron-based material having on its surface a compound layer having a cubic crystal and hexagonal mixed crystal structure having a lattice constant a of 0.416 nm or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08385595A JP3190541B2 (en) | 1995-04-10 | 1995-04-10 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08385595A JP3190541B2 (en) | 1995-04-10 | 1995-04-10 | Rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08284825A true JPH08284825A (en) | 1996-10-29 |
| JP3190541B2 JP3190541B2 (en) | 2001-07-23 |
Family
ID=13814312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08385595A Expired - Fee Related JP3190541B2 (en) | 1995-04-10 | 1995-04-10 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3190541B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142756A (en) * | 1998-06-09 | 2000-11-07 | Matsushita Electric Industrial Co., Ltd. | Rotary compressor |
| WO2005001292A1 (en) * | 2003-06-17 | 2005-01-06 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4616140B2 (en) * | 2005-09-30 | 2011-01-19 | 三菱電機株式会社 | Hermetic compressor and water heater |
-
1995
- 1995-04-10 JP JP08385595A patent/JP3190541B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6142756A (en) * | 1998-06-09 | 2000-11-07 | Matsushita Electric Industrial Co., Ltd. | Rotary compressor |
| CN1113168C (en) * | 1998-06-09 | 2003-07-02 | 松下电器产业株式会社 | Rotary compressor |
| WO2005001292A1 (en) * | 2003-06-17 | 2005-01-06 | Matsushita Electric Industrial Co., Ltd. | Scroll compressor |
| US7905715B2 (en) | 2003-06-17 | 2011-03-15 | Panasonic Corporation | Scroll compressor having a fixed scroll part and an orbiting scroll part |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3190541B2 (en) | 2001-07-23 |
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