CN101956763B - Processing method of seamless sintered bimetallic lining - Google Patents
Processing method of seamless sintered bimetallic lining Download PDFInfo
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- CN101956763B CN101956763B CN2010105013033A CN201010501303A CN101956763B CN 101956763 B CN101956763 B CN 101956763B CN 2010105013033 A CN2010105013033 A CN 2010105013033A CN 201010501303 A CN201010501303 A CN 201010501303A CN 101956763 B CN101956763 B CN 101956763B
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- sintering
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- lining
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- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 42
- 238000003466 welding Methods 0.000 claims abstract description 34
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000000956 alloy Substances 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 15
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000007493 shaping process Methods 0.000 claims abstract description 5
- 238000005202 decontamination Methods 0.000 claims abstract description 4
- 230000003588 decontaminative effect Effects 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 6
- 238000013021 overheating Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 239000011733 molybdenum Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 235000011837 pasties Nutrition 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 238000005480 shot peening Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 238000003801 milling Methods 0.000 abstract 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 208000001840 Dandruff Diseases 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The processing method of the seamless sintering bimetallic lining mainly comprises the following steps: firstly, performing decontamination and deoxidation layer treatment on the surface of a steel plate; secondly, preparing alloy copper powder; thirdly, sintering; fourthly, the sintered bimetallic material is precisely rolled and then pressed circularly and welded to be formed, and the steps of rolling, curling, milling, welding a groove and shaping are included; fifthly, stress relief and shaping are carried out through heat treatment; and sixthly, manufacturing the seamless sintered bimetallic lining through rough machining and finish machining. The seamless sintering bimetal lining has the technical advantages that: 1. the alloy copper layer of the bimetallic lining has high hardness, and the friction coefficient is reduced, so that the comprehensive performance and the service life of the lining are greatly improved; 2. the seamless sintering bimetal bush is not limited by the shape in the manufacturing process; 3. the device is not limited by size and is suitable for various loads and severe environments; 4. the invention has the greatest characteristic of seamless sintering, solves the problem of seam of bimetal sintering, and greatly improves the accuracy, stability and bearing capacity of the bushing.
Description
Technical field
The present invention relates to metal processing, promptly a kind of processing method of seamless sintering bimetal liner.
Background technique
Lining, i.e. sliding bearing.Major part all is that the expensive wear resistant alloy material of usefulness is processed or single high-abrasive material is processed.Also useful bimetallic material is processed, and the machining manufacture of existing bimetal liner has two types:
The first kind: casting class.At the inwall top pouring abrasion resistance alloy of seamless steel pipe, and process the lining of full circle.Though this has guaranteed each mechanical property and the intensity of part, its production technology is quite complicated, and cost is high, energy consumption is big, and only is suitable for undersized lining processing, and is then powerless to large-scale even superhuge sliding bearing.
Summary of the invention
In order a seam all inevitably to occur in the process that overcomes present sintering method production bimetal liner; Make lining precision keep and enabling capabilities aspect the shortcoming of having a greatly reduced quality, the present invention proposes a kind of processing method of seamless sintering bimetal liner.
The processing method of this seamless sintering bimetal liner, its key step is:
One, at first surface of steel plate is carried out decontamination, the processing of deoxygenated layer, comprise shot-peening and oil removing;
Two, the preparation of alloy copper powder, the preparation part by weight of alloy copper powder is; Copper 70-82, tin 5-7, zinc 5-7 and plumbous 2-4; Also can add in the phosphorus, magnesium, silicon, molybdenum of 1-4 one or more;
Three, sintering; Require and steel plate thickness according to different techniques,, carry out the heating of high temperature oxygen barrier then at the surface of steel plate certain thickness alloyed copper powder of small pieces of cloth used for patches equably; The temperature sintering of 700-900 ℃ of degree 30-90 minute; Make the metalwork fusing beyond the copper, alloy powder becomes pasty state, cooling back alloy powder securely sintering on steel plate;
Four, the bimetallic material behind the sintering is through accurate pressure rolling, its various material properties are improved after, press the circle welding fabrication again, comprise roll extrusion, curl, mill mouthful, weld groove and shaping;
Five, carry out the destressing typing through Overheating Treatment;
Six, process seamless sintering bimetal liner through thick, fine finishing at last.
The above-mentioned so-called mouth that mills is: the processing bevel for welding, and the blank jointing after moulding is slotted with profiling cutter, and the section of groove is an isosceles triangle, and the degree of depth of groove, width suitable for reading are the 60%-70% of metal lining thickness.
Above-mentioned so-called weld groove is: divide three welding with carbon-dioxide arc welding; For the first time welding machine is transferred to 20V/150A; Speed point welding with 45-50cm/min; Interface is fixed, again welding machine is transferred to 25V/200A for the second time, under the effect of welding temperature, accomplish the secondary welding of the alloy-layer interface of steel plate lower floor with the speed of 35-40cm/min; Fill out high half the, for the third time that slot welding is flat of groove.
Above-mentioned so-called typing is: carry out the qualitative processing of destressing through Overheating Treatment, and 400 ℃-600 ℃ of temperature, time 1-2 hour, to reduce the distortion in the processing using process.
Above-mentioned so-called thick, fine finishing is: with the elasticity mandrel tensioner endoporus processing excircles that rises, be positioning and clamping benchmark processing endoporus and oil groove again with the cylindrical, to guarantee the uniformity of endoporus processing back copper layer earlier.
The method of seamless sintering bimetal liner of the present invention has solved the Three Difficult Issues of present domestic sintering bimetal liner:
One, seamless sintering bimetal liner, make the more common copper alloy powder institute sintering of tensile and compressive strength and scurf resistance and the antifriction performance of sinter layer raising a lot;
Two, the manufacturing process of seamless sintering bimetal liner does not receive the restriction of the shape and the size of lining, can process the bimetal sliding bearing of various big thickness, major diameter and different shape;
Three, solve the bimetal liner that generally uses in the industry at present and taken a mouthful jointed difficult problem; Adopt the bimetal liner of manufacturing of the present invention; Because the alloyed copper layer to its interface has carried out the secondary clinkering; Take a mouthful seam problem so thoroughly solved, it is seamless really to have realized taking mouth, has reached the purpose of seamless sintering.
The bimetallic lining technological merit of seamless sintering:
1, make the alloyed copper layer hardness of bimetal liner reach 84.9HB2.5/62.5, friction factor has been reduced to 0.085, thereby has improved greatly the combination property and the working life of lining;
2, seamless sintering bimetal liner does not receive the restriction of shape on manufacturing process, can be made into radial sliding bearing, plane thrust bearing, radially add the radial thrust bearing of thrust;
3, do not receive the restriction of size, the present invention can make thickness 2.5-30mm, and the large, medium and small bimetal liner of diameter Ф 50-1000mm all size is applicable to various loads and rugged environment;
4, the maximum characteristics of the present invention are " seamless sintering ", solved the difficult problem that the sintering bimetal has seam, improved accuracy, stability and the bearing capacity of lining greatly.
Description of drawings
Fig. 1 is the sectional drawing of weld groove of the present invention.
Embodiment
Following below in conjunction with specific embodiment to the detailed description of the invention:
The processing method of this seamless sintering bimetal liner.Its key step is:
One, at first surface of steel plate is carried out decontamination, the processing of deoxygenated layer, comprise shot-peening and oil removing;
Two, the preparation of alloy copper powder; The preparation part by weight of alloy copper powder is; Copper 80, tin 5, zinc 6 and plumbous 3; Also add 2.5 phosphorus, 2.5 magnesium, 2.5 silicon and 2.5 molybdenum.
Three, sintering at the surface of steel plate thick alloyed copper powder of small pieces of cloth used for patches steel plate thickness 1/5th equably, carries out the heating of high temperature oxygen barrier then; The temperature sintering of 800 ℃ of degree 60 minutes; Make the metalwork fusing beyond the copper, alloy powder becomes pasty state, cooling back alloy powder securely sintering on steel plate;
Four, the bimetallic material behind the sintering is through accurate pressure rolling, its various material properties are improved after, press the circle welding fabrication again, comprise roll extrusion, curl, mill mouthful, weld groove and shaping; The above-mentioned so-called mouth that mills is: the processing bevel for welding, and the blank jointing after moulding is slotted with profiling cutter, and the section of groove is an isosceles triangle, and the degree of depth of groove, width suitable for reading are 65% of metal lining thickness.
Above-mentioned so-called weld groove is: divide three welding with carbon-dioxide arc welding; For the first time welding machine is transferred to 20V/150A; Speed point welding with 45-50cm/min; Interface is fixed, again welding machine is transferred to 25V/200A for the second time, under the effect of welding temperature, accomplish the secondary welding of the alloy-layer interface of steel plate lower floor with the speed of 35-40cm/min; Fill out high half the, for the third time that slot welding is flat of groove.
Five, carry out the destressing typing through Overheating Treatment; Above-mentioned so-called typing is: carry out the qualitative processing of destressing through Overheating Treatment, and 500 ℃ of temperature, 1.5 hours time is to reduce the distortion in the processing using process.
Six, process seamless sintering bimetal liner through thick, fine finishing at last.
Above-mentioned so-called thick, fine finishing is: with the elasticity mandrel tensioner endoporus processing excircles that rises, be positioning and clamping benchmark processing endoporus and oil groove again with the cylindrical, to guarantee the uniformity of endoporus processing back copper layer earlier.
In Fig. 1, the section of groove is an isosceles triangle, and the degree of depth of groove, width suitable for reading are 65% of metal lining thickness.1 is copper alloy layer among the figure, the 2nd, and steel plate, A are spot welding for the first time, and B is welding for the second time, fills out high half the of groove, and C is for the third time that slot welding is flat.
Claims (5)
1. the processing method of seamless sintering bimetal liner is characterized in that, key step is:
One, at first surface of steel plate is carried out decontamination, the processing of deoxygenated layer, comprise shot-peening and oil removing;
Two, the preparation of alloy copper powder, the preparation part by weight of alloy copper powder is; Copper 80, tin 5, zinc 6 and plumbous 3; Also add in the molybdenum of 2.5 phosphorus, 2.5 magnesium, 2.5 silicon and 2.5 one or more;
Three, sintering; Require and steel plate thickness according to different techniques,, carry out the heating of high temperature oxygen barrier then at the surface of steel plate certain thickness alloyed copper powder of small pieces of cloth used for patches equably; The temperature sintering of 800 ℃ of degree 60 minutes; Make the metalwork fusing beyond the copper, alloy powder becomes pasty state, cooling back alloy powder securely sintering on steel plate;
Four, the bimetallic material behind the sintering is through accurate pressure rolling, its various material properties are improved after, press the circle welding fabrication again, comprise roll extrusion, curl, mill mouthful, weld groove and shaping;
Five, carry out the destressing typing through Overheating Treatment;
Six, process seamless sintering bimetal liner through thick, fine finishing at last.
2. the processing method of seamless sintering bimetal liner according to claim 1; It is characterized in that; The above-mentioned so-called mouth that mills is: the processing bevel for welding; Blank jointing after moulding is slotted with profiling cutter, and the section of groove is an isosceles triangle, and the degree of depth of groove, width suitable for reading are 65% of metal lining thickness.
3. the processing method of seamless sintering bimetal liner according to claim 1 is characterized in that, above-mentioned so-called weld groove is: divide three welding with carbon-dioxide arc welding; For the first time welding machine is transferred to 20V/150A; Speed point welding with 45-50cm/min; Interface is fixed, again welding machine is transferred to 25V/200A for the second time, under the effect of welding temperature, accomplish the secondary welding of the alloy-layer interface of steel plate lower floor with the speed of 35-40cm/min; Fill out high half the, for the third time that slot welding is flat of groove.
4. the processing method of seamless sintering bimetal liner according to claim 1 is characterized in that, above-mentioned so-called typing is: carry out the qualitative processing of destressing through Overheating Treatment, and 500 ℃ of temperature, 1.5 hours time is to reduce the distortion in the processing using process.
5. the processing method of seamless sintering bimetal liner according to claim 1; It is characterized in that; Above-mentioned so-called thick, fine finishing is: earlier with the elasticity mandrel tensioner endoporus processing excircles that rises; Be positioning and clamping benchmark processing endoporus and oil groove again with the cylindrical, to guarantee the uniformity of endoporus processing back copper layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105013033A CN101956763B (en) | 2010-10-11 | 2010-10-11 | Processing method of seamless sintered bimetallic lining |
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| CN2010105013033A CN101956763B (en) | 2010-10-11 | 2010-10-11 | Processing method of seamless sintered bimetallic lining |
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| CN101956763A CN101956763A (en) | 2011-01-26 |
| CN101956763B true CN101956763B (en) | 2012-05-23 |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104209508A (en) * | 2014-08-20 | 2014-12-17 | 安徽汉升新金属技术有限公司 | Copper powder used on copper and lead composite material and production method of copper powder |
| CN104209525A (en) * | 2014-08-20 | 2014-12-17 | 安徽汉升新金属技术有限公司 | Production technology for copper and lead composite material |
| CN105370537B (en) * | 2014-08-28 | 2018-06-26 | 上海海立电器有限公司 | A kind of manufacturing method of compressor and its compound rack |
| CN105690032A (en) * | 2015-10-27 | 2016-06-22 | 怀宁汉升车辆部件有限公司 | Machining process for bimetal bush |
| CN105798550B (en) * | 2016-05-16 | 2017-09-01 | 无锡威孚精密机械制造有限责任公司 | A kind of destressing process method of bimetallic material oil distribution casing |
| CN106694889B (en) * | 2017-01-17 | 2018-10-09 | 苏州艾盾合金材料有限公司 | A kind of neck bush and preparation method thereof with composite alloy layer |
| CN109244686B (en) * | 2018-07-26 | 2021-06-18 | 合德华厦安防科技有限公司 | Core rod for grounding system and preparation method thereof |
| CN110744062A (en) * | 2019-10-14 | 2020-02-04 | 融之航信息科技（苏州）有限公司 | Production and processing technology of metal fluoroplastic lining |
| CN112343948B (en) * | 2020-11-05 | 2021-08-06 | 三阳纺织有限公司 | Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component |
| CN112548093A (en) * | 2020-12-04 | 2021-03-26 | 合肥波林新材料股份有限公司 | Copper-based powder metallurgy plunger pump oil distribution disc material and preparation method thereof |
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| JPS5268805A (en) * | 1975-12-05 | 1977-06-08 | Mitsuya Seiko | Ironnbased bearing alloy and composite material therefor |
| AU576797B2 (en) * | 1983-11-28 | 1988-09-08 | Federal Mogul Corporation | Composite bearing material made by powder metalurgy |
| CN1090299C (en) * | 2000-01-01 | 2002-09-04 | 段俊荣 | Manufacture of self-lubricating solid bush |
| CN1775426A (en) * | 2005-11-24 | 2006-05-24 | 上海核威实业有限公司 | Process for manufacturing phosphor bronze-steel bimetal bearing material with phosphor content more than 0.1% |
| US8679641B2 (en) * | 2007-01-05 | 2014-03-25 | David M. Saxton | Wear resistant lead free alloy bushing and method of making |
| CN201461740U (en) * | 2009-05-11 | 2010-05-12 | 封仪 | Thermometal extrusion bushing |
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