CN111111897B - A bimetal composite striking plate for fan-type coal mill and its processing technology - Google Patents
A bimetal composite striking plate for fan-type coal mill and its processing technology Download PDFInfo
- Publication number
- CN111111897B CN111111897B CN201911364202.3A CN201911364202A CN111111897B CN 111111897 B CN111111897 B CN 111111897B CN 201911364202 A CN201911364202 A CN 201911364202A CN 111111897 B CN111111897 B CN 111111897B
- Authority
- CN
- China
- Prior art keywords
- striking plate
- casting
- plate
- mould
- pouring
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
一种风扇式磨煤机用双金属复合打击板，所述的双金属复合打击板包括内打击板与外打击板，所述的内打击板与外打击板均由35#钢以及高铬合金浇注而成；所述的内打击板与外打击板的中间分别设置有内打击板隔板与外打击板隔板；加工工艺包括以下步骤：1）产品制图设计；2）模具设计；3）隔板制作；4）造型；5）浇注；6）产品出箱；7）工件打磨；8）产品检验；9）产品热处理。本发明采用两种不同的金属熔炼，并一次性复合浇铸；提高打击板耐磨强度和抗冲击性能，延长使用周期；同时降低风扇磨的检修成本；减少停机时间，提高设备运转率；减少磨耗造成的设备产能降低及耗电增加的损失；降低磨耗破损落料而污染环境及增加清料维修的成本。
A bimetallic composite striking plate for a fan-type coal pulverizer, the bimetallic composite striking plate comprises an inner striking plate and an outer striking plate, and the inner striking plate and the outer striking plate are both made of 35# steel and high-chromium alloy Casting; the middle of the inner striking plate and the outer striking plate are respectively provided with an inner striking plate partition plate and an outer striking plate partition plate; the processing process includes the following steps: 1) product drawing design; 2) mold design; 3) 4) Modeling; 5) Pouring; 6) Product out of the box; 7) Workpiece grinding; 8) Product inspection; 9) Product heat treatment. The invention adopts two different metals for smelting and one-time composite casting; improves the wear resistance and impact resistance of the strike plate, prolongs the service cycle; at the same time, reduces the maintenance cost of the fan mill; reduces the downtime, improves the operation rate of the equipment, and reduces the wear The resulting loss of equipment capacity reduction and power consumption increase; reduce wear and tear, damage and blanking and pollute the environment and increase the cost of cleaning and maintenance.
Description
Technical Field
The invention belongs to the field of application of power plant mechanical accessories, and particularly relates to a processing technology of a fan mill bimetal composite striking plate.
Background
In power generation of a power plant, machine consideration is generally carried out according to selected coal types, and a fan type coal mill is more suitable for grinding high-moisture lignite and soft bituminous coal compared with other coal mills. During the working process of the fan coal mill, the fineness of pulverized coal grinding also relates to the quality of power generation and combustion of a power plant. After the crocus grinding work is accomplished at fan-type coal pulverizer, can blow into the boiler with the buggy through hot-blast, then the hot flue gas that the buggy formed after the boiler fully burns can flow along the boiler and release heat, follow-up coal ash separation that carries on, and fan-type coal pulverizer's grinding efficiency and meticulous degree have a fine assurance, so change in, the buggy is fully burnt at the boiler, also can improve the utilization ratio of buggy, reduces environmental pollution.
The work of current fan coal pulverizer is the impacted style, so to its component structure if strike the board and require highly, it not only needs can be quick dismantle, still will have wear-resisting, shock-resistant, characteristics such as high temperature resistant, current strike board that is used for fan coal pulverizer, the structure is complicated and do not have wear-resisting, shock-resistant, characteristics such as high temperature resistant, can not satisfy current fan coal pulverizer's assembly user demand, and this is present waiting to solve urgently. Therefore, in view of the above problems, it is necessary to provide a fan-driven striking plate that is capable of improving the wear resistance and impact resistance of the striking plate and prolonging the service life by modifying the product according to the working conditions of the customer site.
Disclosure of Invention
The invention aims to provide a bimetal composite striking plate for a fan-type coal mill and a processing technology thereof, and solves the technical problems.
In order to achieve the technical purpose and achieve the technical requirements, the invention adopts the technical scheme that: the utility model provides a fan-type coal pulverizer is with compound striking board of bimetal which characterized in that: the bimetal composite striking plate comprises an inner striking plate and an outer striking plate, wherein the inner striking plate and the outer striking plate are both cast by 35# steel and high-chromium alloy; and an inner striking plate clapboard and an outer striking plate clapboard are respectively arranged between the inner striking plate and the outer striking plate.
Preferably, the method comprises the following steps: the inner striking plate partition board and the outer striking plate partition board are respectively provided with a plurality of rows of pins which are uniformly distributed, and the pins in the adjacent rows are arranged in a staggered manner.
The processing technology of the bimetal composite striking plate for the fan-type coal mill is characterized by comprising the following steps of: the method comprises the following steps:
1) product drawing design: redesigning according to the overall dimension of the striking plate used on site, making a new manufacturing process, disassembling a part drawing and noting the manufacturing dimension key point;
2) designing a mold: the lining plate mould is produced by adopting a wood mould, and is provided with a special bottom plate for the mould;
3) manufacturing a partition plate: when the partition board is manufactured, the length of the partition board is required to be consistent with the positioning of the die, and the deviation is controlled within 1 mm;
4) modeling: the casting adopts a special sand box and a resin sand production process;
5) pouring: two metal materials are used for casting: one is high chromium alloy, and one is 35# steel;
6) discharging the product out of the box: casting and preserving heat for 24 hours, and taking out of the box, wherein the workpiece after being taken out of the box cannot be horizontally placed and needs to be vertically placed and cooled to normal temperature;
7) polishing a workpiece: when a casting is polished, the dead head part needs to be cleaned, so that the casting is ensured to be flat, thermal cutting is not needed, and peripheral burrs are cleaned;
8) product inspection: detecting each part by spectrum, determining whether the casting is qualified according to the spectrum report, and performing heat treatment after the casting is qualified;
9) and (3) heat treatment of the product: carrying out heat treatment, detecting the concentration and the temperature of the quenching liquid, ensuring the hardness of the casting without cracks, and ensuring the hardness HRC56-58 after the heat treatment; the casting needs to be vertically placed and fixed, and abnormal bending conditions are avoided during quenching.
Further: the mould in the step 2) is divided into an upper moulding box and a lower moulding box, two vertical pouring channels of molten steel are made on the upper moulding box and the lower moulding box, a loam core is additionally arranged at the bottom of the striking plate in a through-length mode, and a horizontal pouring channel and an inner pouring channel are made on two side faces of the loam core; and reserving a dead head positioning position on the bottom plate, positioning the partition plate on the striking plate body mould according to a drawing, calculating the shrinkage rate of the casting by 2.6% for the rest of the moulds except for the moulds with certain dimensions specified by the drawing without shrinkage, inspecting the moulds according to the drawing, and waiting for drying and standby after painting.
Further: the pin shaft for the partition plate in the step 3) is customized by adopting a standard part, so that the length and the right angle are consistent according to a figure; the diameter ratio of the drilled hole of the partition board is equal to plus 0.5mm of the pin shaft, the flatness of the partition board is ensured, the pin shaft needs to be penetrated on a special template and is firmly welded, and the partition board is subjected to rust removal treatment after being qualified.
Further: the partition plate in the step 3) comprises an outer striking plate partition plate and an inner striking plate partition plate, three rows of pins are arranged on the outer striking plate partition plate, and two adjacent rows of pins are arranged in a staggered manner; seven rows of pin bolts are arranged on the inner striking plate partition plate, and two adjacent rows of pin bolts are arranged in a staggered manner; the right middle of the outer striking plate clapboard and the inner striking plate clapboard is provided with a pin shaft hole which is connected through a pin shaft.
Further: in the step 4), a chill needs to be arranged on the casting working surface, the height of a riser is 200mm, and the cavity coating is coated for 2-3 times to ensure the strength of the coating; checking the stability and firmness of the mud core of each part, if a molding box has a gap, embedding refractory materials, and scraping a coating to ensure that the corner cleaning coating does not stagnate after the molding box is brushed with the coating; and removing redundant paint and resin sand garbage in the cavity, arranging a partition plate according to the shape of a drawing, checking whether the partition plate and the molding box have no gap, closing the molding box after the partition plate and the molding box are qualified, and fastening a fixing bolt.
Further: in the step 5): controlling the temperature of the two materials before pouring, and performing deoxidation work to ensure that no gas exists in the molten steel; casting the 35# steel firstly when casting, casting the high-chromium alloy molten steel after the molten steel enters the cavity for 3-5 seconds, observing the casting speed, wherein the molten steel of the 35# steel is higher than the high-chromium alloy and rises synchronously; stopping pouring when the No. 35 molten steel reaches the height of the partition plate of the molding box; continuously pouring the high-chromium alloy, and stopping pouring when the high-chromium alloy molten steel reaches the root of the riser; and after 10 seconds, continuously pouring the high-chromium alloy molten steel until the riser is full, and finishing the pouring.
The invention adopts two different metals for smelting and one-time composite casting; the abrasion resistance and the impact resistance of the striking plate are improved, and the service cycle is prolonged; meanwhile, the maintenance cost of the fan mill is reduced; the downtime is reduced, and the equipment operation rate is improved; the loss of the reduction of equipment productivity and the increase of power consumption caused by abrasion is reduced; reduce the environmental pollution caused by abrasion, damage and blanking and increase the cost of cleaning and maintaining.
Drawings
FIG. 1 is a table of chemical compositions of high carbon and high chromium alloys;
FIG. 2 is a table of chemical compositions of No. 35 steel;
FIG. 3 is a view of the outer striking plate diaphragm;
FIG. 4 is a view of the inner striking plate diaphragm;
FIG. 5 is a schematic cross-sectional view of an outer striking plate;
FIG. 6 is a schematic cross-sectional view of an inner striking plate
In the figure: 1. an outer striking plate spacer; 2. an inner striking plate spacer; 3. an outer striking plate; 4. an inner striking plate; 5. a pin.
Detailed Description
1. Drawing design: redesigning according to the overall dimension of the striking plate used on site, making a new manufacturing process, disassembling a part drawing and noting the manufacturing dimension.
2. Designing a mold: the lining plate mould is produced by adopting a wood mould and is provided with a special bottom plate for a mould. The mould is divided into an upper molding box and a lower molding box, two vertical pouring channels for molten steel are made on the upper molding box and the lower molding box, the bottom of the striking plate is additionally provided with a loam core in a through-length mode, and a horizontal pouring channel and an inner pouring channel are made on two side faces of the loam core. And reserving a dead head positioning position on the bottom plate, positioning the partition plate on the striking plate body mould according to a drawing, calculating the shrinkage rate of the casting by 2.6% for the rest of the moulds except for the moulds with certain dimensions specified by the drawing without shrinkage, inspecting the moulds according to the drawing, and waiting for drying and standby after painting.
3. Manufacturing a partition plate: when the partition board is manufactured, the length of the partition board is required to be consistent with the positioning of the die, and the deviation is controlled within 1 mm. The partition pin shaft is customized by adopting a standard part, so that the length and the right angle are ensured to be consistent according to a figure. The diameter ratio of the drilled hole of the partition board is equal to plus 0.5mm of the pin shaft, the flatness of the partition board is ensured, the pin shaft needs to be penetrated on a special template and is firmly welded, and the partition board is subjected to rust removal treatment after being qualified. The bimetal composite striking plate comprises an inner striking plate 4 and an outer striking plate 3, wherein the inner striking plate 4 and the outer striking plate 3 are both cast by 35# steel and high-chromium alloy; the middle of the inner striking plate 4 and the middle of the outer striking plate 3 are respectively provided with an inner striking plate clapboard 2 and an outer striking plate clapboard 1. A plurality of rows of pins 5 which are uniformly distributed are arranged on the two sides of the inner striking plate partition plate 2 and the outer striking plate partition plate 1, and the pins 5 in the adjacent rows are arranged in a staggered mode.
4. Modeling: the casting adopts a special sand box and a resin sand production process. A casting working surface needs to be provided with a chill, the height of a riser is 200mm, and a cavity coating is coated for 2-3 times, so that the strength of the coating is ensured. Checking the stability and firmness of the mud core of each part, if the molding box has a gap, embedding refractory materials, and scraping the coating to ensure that the corner cleaning coating does not stagnate after the molding box is brushed with the coating. And removing redundant paint and resin sand garbage in the cavity, arranging a partition plate according to the shape of a drawing, checking whether the partition plate and the molding box have no gap, closing the molding box after the partition plate and the molding box are qualified, and fastening a fixing bolt.
5. Pouring: the casting adopts two metal materials, one is high-chromium alloy, and the other is 35# steel (the specific component proportion is shown in attached figures 1 and 2); before pouring, the temperature of the two materials is controlled, and deoxidation work is carried out to ensure that no gas exists in the molten steel. When in casting, the 35# steel is firstly cast, after the molten steel enters the cavity for 3-5 seconds, the high-chromium alloy molten steel is cast, the casting speed is observed, and the molten steel of the 35# steel is higher than that of the high-chromium alloy and rises synchronously. And stopping pouring when the No. 35 molten steel reaches the height of the partition plate of the molding box. And continuously pouring the high-chromium alloy, and stopping pouring when the molten high-chromium alloy steel reaches the root of the riser. And after 10 seconds, continuously pouring the high-chromium alloy molten steel until the riser is full, and finishing the pouring.
6. Discharging: and (4) taking out the workpiece from the box after casting and heat preservation for 24 hours, wherein the workpiece taken out of the box cannot be horizontally placed and needs to be vertically placed and cooled to the normal temperature.
7. Polishing: when the casting is polished, the dead head position needs to be cleaned, the casting is ensured to be flat, thermal cutting is not needed, and peripheral burrs are cleaned.
8. And (4) checking: detecting each part by spectrum, determining whether the casting is qualified according to the spectrum report, and performing heat treatment after the casting is qualified.
9. And (3) heat treatment: and (4) carrying out heat treatment, and detecting the concentration and the temperature of the quenching liquid to ensure that the casting has hardness and no crack, wherein the hardness is HRC56-58 after the heat treatment. The casting needs to be vertically placed and fixed, and abnormal bending conditions are avoided during quenching.
The foregoing examples are given solely for the purpose of illustrating the invention and are not to be construed as limiting the embodiments, and other variations and modifications in form thereof will be suggested to those skilled in the art upon reading the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments and all such obvious variations and modifications are deemed to be within the scope of the invention.
Claims (1)
1. A processing technology of a bimetal composite striking plate for a fan-type coal mill comprises the following steps: the method comprises the following steps:
product drawing design: redesigning according to the overall dimension of the striking plate used on site, making a new manufacturing process, disassembling a part drawing and noting the manufacturing dimension key point;
designing a mold: the lining plate mould is produced by adopting a wood mould, and is provided with a special bottom plate for the mould;
manufacturing a partition plate: when the partition board is manufactured, the length of the partition board is required to be consistent with the positioning of the die, and the deviation is controlled within 1 mm;
modeling: the casting adopts a special sand box and a resin sand production process;
pouring: two metal materials are used for casting: one is high chromium alloy, and one is 35# steel;
discharging the product out of the box: casting and preserving heat for 24 hours, and taking out of the box, wherein the workpiece after being taken out of the box cannot be horizontally placed and needs to be vertically placed and cooled to normal temperature;
polishing a workpiece: when a casting is polished, the dead head part needs to be cleaned, so that the casting is ensured to be flat, thermal cutting is not needed, and peripheral burrs are cleaned;
product inspection: detecting each part by spectrum, determining whether the casting is qualified according to the spectrum report, and performing heat treatment after the casting is qualified;
and (3) heat treatment of the product: carrying out heat treatment, detecting the concentration and the temperature of the quenching liquid, ensuring the hardness of the casting without cracks, and ensuring the hardness HRC56-58 after the heat treatment; the casting needs to be vertically placed and fixed, so that abnormal bending conditions during quenching are avoided;
the design of the die comprises the following steps: the method comprises the following steps that (1) the mould is divided into an upper mould box and a lower mould box, two vertical pouring channels for molten steel are formed in the upper mould box and the lower mould box, a sand core is additionally arranged at the bottom of a striking plate in a through-length mode, and a transverse pouring channel and an inner pouring channel are formed in two side faces of the sand core; reserving a dead head positioning position on the bottom plate, positioning a partition plate on a striking plate body mould according to a drawing, calculating the shrinkage rate of a casting piece according to 2.6% uniformly except for the mould with certain dimensions specified by the drawing without shrinkage, inspecting the mould according to the drawing, and brushing paint for standby use;
the pin shaft for the partition board in the partition board manufacturing process is customized by adopting a standard part, so that the length and the right angle are ensured to be consistent according to a figure; the diameter of a drilled hole of the partition plate is equal to plus 0.5mm of the pin shaft, so that the flatness of the partition plate is ensured, the pin shaft needs to be penetrated on a special template and is firmly welded, and the partition plate is subjected to derusting treatment after being qualified; the bimetal composite striking plate comprises an inner striking plate (4) and an outer striking plate (3), wherein the inner striking plate (4) and the outer striking plate (3) are both cast by 35# steel and high-chromium alloy; an inner striking plate clapboard (2) and an outer striking plate clapboard (1) are respectively arranged between the inner striking plate (4) and the outer striking plate (3); a plurality of rows of pins (5) which are uniformly distributed are arranged on both sides of the inner striking plate partition plate (2) and the outer striking plate partition plate (1), and the pins (5) in the adjacent rows are arranged in a staggered manner;
in the molding, a chill is required to be arranged on the casting working surface, the height of a riser is 200mm, and a cavity coating is coated for 2-3 times to ensure the strength of the coating; checking the stability and firmness of the mud core of each part, if a molding box has a gap, embedding refractory materials, and scraping a coating to ensure that the corner cleaning coating does not stagnate after the molding box is brushed with the coating; removing redundant paint and resin sand garbage in the cavity, arranging a partition plate according to the shape of a drawing, closing the mould after the partition plate and the mould are qualified by checking that no gap exists between the partition plate and the mould, and fastening a fixing bolt;
the temperature of the two materials is controlled before the pouring, and the deoxidation work is carried out to ensure that no gas exists in the molten steel; casting the 35# steel firstly when casting, casting the high-chromium alloy molten steel after the molten steel enters the cavity for 3-5 seconds, observing the casting speed, wherein the molten steel of the 35# steel is higher than the high-chromium alloy and rises synchronously; stopping pouring when the No. 35 molten steel reaches the height of the partition plate of the molding box; continuously pouring the high-chromium alloy, and stopping pouring when the high-chromium alloy molten steel reaches the root of the riser; and after 10 seconds, continuously pouring the high-chromium alloy molten steel until the riser is full, and finishing the pouring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911364202.3A CN111111897B (en) | 2019-12-26 | 2019-12-26 | A bimetal composite striking plate for fan-type coal mill and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911364202.3A CN111111897B (en) | 2019-12-26 | 2019-12-26 | A bimetal composite striking plate for fan-type coal mill and its processing technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111111897A CN111111897A (en) | 2020-05-08 |
| CN111111897B true CN111111897B (en) | 2022-03-01 |
Family
ID=70502858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911364202.3A Active CN111111897B (en) | 2019-12-26 | 2019-12-26 | A bimetal composite striking plate for fan-type coal mill and its processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111111897B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117483723B (en) * | 2023-12-29 | 2024-03-29 | 邯郸慧桥复合材料科技有限公司 | Manufacturing method of wear-resistant composite castings and detection method of composite interface bonding strength |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099075A (en) * | 1994-06-28 | 1995-02-22 | 冶金工业部北京冶金设备研究院 | High strength and high chrome cast iron lining plate and its prodn. method |
| JP2007144442A (en) * | 2005-11-25 | 2007-06-14 | Hitachi Metals Ltd | Composite roll for rolling |
| CN101745627A (en) * | 2008-12-18 | 2010-06-23 | 苏州有色金属研究院有限公司 | Multilayer heterogeneity aluminum alloy synchronous compound casting device |
| CN202366761U (en) * | 2011-12-08 | 2012-08-08 | 洛阳市致力实业有限公司 | A dual-liquid thermal composite hammer head device with clapboard and edge wrapping |
| CN105420619A (en) * | 2015-11-13 | 2016-03-23 | 丹阳嘉伟耐磨材料科技有限公司 | Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof |
| CN105562141A (en) * | 2016-02-19 | 2016-05-11 | 包头市鹿电高新材料有限责任公司 | Wear-resistant jaw plate for jaw crusher and preparation method thereof |
| CN105903924A (en) * | 2016-06-14 | 2016-08-31 | 北京交通大学 | Preparation device and method for composite plate hammer |
| CN206652574U (en) * | 2017-03-15 | 2017-11-21 | 沈阳重型电站设备制造有限公司 | The wear-resisting light-duty beater wheel of blower mill |
| CN109877298A (en) * | 2019-02-19 | 2019-06-14 | 合肥四维铸造有限公司 | A kind of embedded composite casting method |
| KR20190091392A (en) * | 2018-01-24 | 2019-08-06 | 에이치디에이치주식회사 | Abrasion resistance piping for transportation by double centrifugal casting |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2278424A1 (en) * | 1974-06-10 | 1976-02-13 | Sapic | PROCESS AND APPARATUS FOR MECHANICAL AND PNEUMATIC CLEANING AND DEDUSTING OF A GRANULAR AND / OR PULVERULENT SUBSTANCE |
| CN101168190B (en) * | 2007-10-11 | 2012-10-31 | 丁家伟 | Hard alloy and double-metal composite technique |
| CN101332558A (en) * | 2008-07-08 | 2008-12-31 | 张剑鑫 | New manufacture technique of duplex metal composite lining board |
| CN101941064A (en) * | 2010-08-25 | 2011-01-12 | 刘明强 | Method for manufacturing metal-base compound bimetallic article by centrifugation |
| CN102211174B (en) * | 2011-05-07 | 2013-05-08 | 迁安市宏信铸造有限公司 | Process for casting wear-resistant hammer head by compounding two kinds of metal liquid |
| CN103894262B (en) * | 2014-03-19 | 2016-02-03 | 大连汉顿工业有限公司 | The abrasionproof beater plate of a kind of blower mill and use thereof |
| CN204816722U (en) * | 2015-07-01 | 2015-12-02 | 江苏国泰机械制造有限公司 | Two metal backing |
| CN108479954B (en) * | 2018-03-27 | 2020-07-14 | 昆明理工大学 | Striking plate of wear-resistant composite material fan coal mill |
-
2019
- 2019-12-26 CN CN201911364202.3A patent/CN111111897B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099075A (en) * | 1994-06-28 | 1995-02-22 | 冶金工业部北京冶金设备研究院 | High strength and high chrome cast iron lining plate and its prodn. method |
| JP2007144442A (en) * | 2005-11-25 | 2007-06-14 | Hitachi Metals Ltd | Composite roll for rolling |
| CN101745627A (en) * | 2008-12-18 | 2010-06-23 | 苏州有色金属研究院有限公司 | Multilayer heterogeneity aluminum alloy synchronous compound casting device |
| CN202366761U (en) * | 2011-12-08 | 2012-08-08 | 洛阳市致力实业有限公司 | A dual-liquid thermal composite hammer head device with clapboard and edge wrapping |
| CN105420619A (en) * | 2015-11-13 | 2016-03-23 | 丹阳嘉伟耐磨材料科技有限公司 | Duplex-metal composite high-toughness high-boron abrasion-resistant steel hammerhead and preparation method thereof |
| CN105562141A (en) * | 2016-02-19 | 2016-05-11 | 包头市鹿电高新材料有限责任公司 | Wear-resistant jaw plate for jaw crusher and preparation method thereof |
| CN105903924A (en) * | 2016-06-14 | 2016-08-31 | 北京交通大学 | Preparation device and method for composite plate hammer |
| CN206652574U (en) * | 2017-03-15 | 2017-11-21 | 沈阳重型电站设备制造有限公司 | The wear-resisting light-duty beater wheel of blower mill |
| KR20190091392A (en) * | 2018-01-24 | 2019-08-06 | 에이치디에이치주식회사 | Abrasion resistance piping for transportation by double centrifugal casting |
| CN109877298A (en) * | 2019-02-19 | 2019-06-14 | 合肥四维铸造有限公司 | A kind of embedded composite casting method |
Non-Patent Citations (1)
| Title |
|---|
| 风扇磨煤机打击轮结构分析及优化设计;宋平;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;中国学术期刊（光盘版）电子杂志社;20060915(第9期);第33页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111111897A (en) | 2020-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102228956B (en) | Precision fire mould casting process of series sliding bed bedplates for turnouts of high-speed railway lines for passenger transport and special die | |
| CN100462161C (en) | Composite sand mould material for producing stainless steel casting and method for casting stainless steel casting | |
| CN103522016B (en) | The processing method of semi-autogenous mill middle cylinder body liner plate | |
| CN101422816A (en) | Exposed gear casting no-choke riser-head technique design | |
| CN105964912A (en) | Crankshaft casting technology | |
| CN106825435B (en) | The casting processing technology of dredging pump impeller | |
| CN111111897B (en) | A bimetal composite striking plate for fan-type coal mill and its processing technology | |
| CN202726004U (en) | Copper plate of crystallizer of high pulling speed continuous casting machine | |
| CN201423431Y (en) | Anti-crack energy-saving cast iron mold | |
| CN102380579A (en) | Casting method of crushing wall or rolling mortar wall | |
| CN105013703B (en) | A kind of bimetal wear resistant sieve on crushing-screening machine and preparation method thereof | |
| CN201150978Y (en) | Copper plate coating structure of medium and thin slab continuous casting mold | |
| CN209174695U (en) | A kind of double-layer metal resurfacing welding ultra-high strength steel hot stamping forming die | |
| CN113042684A (en) | Grinding disc, model for casting grinding disc and casting process of grinding disc | |
| CN102371344B (en) | Process for casting hot air grate for blast furnace | |
| CN105268926A (en) | Method for casting steel anode template through composite sand mould | |
| CN202779643U (en) | Steel-iron composite steel ingot mold | |
| CN210450875U (en) | Composite material cast iron mold of pig casting machine | |
| CN110801907A (en) | High-wear-resistance composite casting hammer disc and preparation process thereof | |
| CN219141517U (en) | Novel energy-saving metal ceramic grid plate | |
| CN201587144U (en) | Extrusion molding machine die plate wear sleeve | |
| CN217595825U (en) | Large-scale plate-shaped casting deformation prevention structure | |
| CN119876756A (en) | Excavator bucket tooth and forming process | |
| CN104801667A (en) | Method for preventing generation of casting crack of high temperature alloy mold | |
| CN117839813A (en) | High-wear-resistance lining plate of roller bracket of MPS medium-speed coal mill and manufacturing method of high-wear-resistance lining plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220704 Address after: 214500 Industrial Park, Xinqiao Town, Jingjiang City, Taizhou City, Jiangsu Province Patentee after: JIANGSU GUOTAI MACHNERY MANUFACTURING Co.,Ltd. Address before: 214500 9-d, international trade business center, Renmin Road, Jingjiang City, Taizhou City, Jiangsu Province Patentee before: Chen Wei |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A bimetallic composite striking plate for a fan type coal mill and its processing technology Granted publication date: 20220301 Pledgee: China Construction Bank Corporation Jingjiang sub branch Pledgor: JIANGSU GUOTAI MACHNERY MANUFACTURING Co.,Ltd. Registration number: Y2025980022092 |