CN101956763A - Process method of seamless sintering bimetallic lining - Google Patents
Process method of seamless sintering bimetallic lining Download PDFInfo
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- CN101956763A CN101956763A CN 201010501303 CN201010501303A CN101956763A CN 101956763 A CN101956763 A CN 101956763A CN 201010501303 CN201010501303 CN 201010501303 CN 201010501303 A CN201010501303 A CN 201010501303A CN 101956763 A CN101956763 A CN 101956763A
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Abstract
The invention discloses a process method of a seamless sintering bimetallic lining, mainly comprising the following steps: 1 performing contamination and oxidation layer removing treatment on the surface of a steel plate; 2 preparing copper alloy powder; 3 sintering; 4 performing precision rolling on the sintered bimetallic material, pressing the material into a round shape, and carrying out welding forming, wherein the process comprises rolling, crimping, mouth milling, groove welding and shape reforming; 5 performing the de-stressing and shaping through heat treatment; and 6 manufacturing the seamless sintering bimetallic lining through the rough machining and finish machining. The seamless sintering bimetallic lining has the following technical advantages: 1 the hardness of the copper alloy layer of the bimetallic lining is higher, and the friction coefficient is reduced, thereby greatly enhancing the combination properties and the service life of the lining; 2 the seamless sintering bimetallic lining has no shape limitation in the manufacture process; 3 the seamless sintering bimetallic lining has no size limitation, and is suitable for being used in various loads and severe environment; and 4 the method of the invention has the significant characteristic of seamless sintering, thereby solving the problem that the seam exists in the process of sintering the bimetallic material, greatly enhancing the accuracy, the stability and the bearing capacity of the lining.
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 to make or single high-abrasive material is made with expensive wear resistant alloy material.Also useful bimetallic material is made, and the machining manufacture of existing bimetal liner has two classes:
The first kind: casting class.At the inwall top pouring abrasion resistance alloy of seamless steel pipe, and make 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 height, energy consumption are big, and only are suitable for undersized lining processing, and be 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, according to different technical requirementss and steel plate thickness, at the surface of steel plate certain thickness alloyed copper powder of small pieces of cloth used for patches equably, carry out the heating of high temperature oxygen barrier then, 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 by 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, make seamless sintering bimetal liner by 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, for the second time again welding machine is transferred to 25V/200A, under the effect of welding temperature, finish the secondary welding of the alloy-layer interface of steel plate lower floor with the speed of 35-40cm/min, fill out high half of groove, for the third time that slot welding is flat.
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 the tensile and compressive strength of sinter layer and scurf resistance and antifriction performance raising a lot;
Two, the manufacturing process of seamless sintering bimetal liner is not subjected to 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, so thoroughly solved mouthful seam problem of taking, 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 is not subjected to 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, be not subjected to 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 characteristics of maximum 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
As follows 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 by 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, for the second time again welding machine is transferred to 25V/200A, under the effect of welding temperature, finish the secondary welding of the alloy-layer interface of steel plate lower floor with the speed of 35-40cm/min, fill out high half of groove, for the third time that slot welding is flat.
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, make seamless sintering bimetal liner by 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 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 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, according to different technical requirementss and steel plate thickness, at the surface of steel plate certain thickness alloyed copper powder of small pieces of cloth used for patches equably, carry out the heating of high temperature oxygen barrier then, 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 by 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, make seamless sintering bimetal liner by 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, 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.
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, for the second time again welding machine is transferred to 25V/200A, under the effect of welding temperature, finish the secondary welding of the alloy-layer interface of steel plate lower floor with the speed of 35-40cm/min, fill out high half of groove, for the third time that slot welding is flat.
4. the processing method of seamless sintering bimetal liner according to claim 1, it is characterized in that above-mentioned so-called typing is: carry out the qualitative processing of destressing through Overheating Treatment, 400 ℃-600 ℃ of temperature, time 1-2 hour, 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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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN105370537A (en) * | 2014-08-28 | 2016-03-02 | 上海日立电器有限公司 | Compressor and manufacturing method of composite rack of compressor |
| 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 |
| CN105798550A (en) * | 2016-05-16 | 2016-07-27 | 无锡威孚精密机械制造有限责任公司 | Destressing treatment method for bimetallic oil distribution disc |
| CN106694889A (en) * | 2017-01-17 | 2017-05-24 | 苏州艾盾合金材料有限公司 | Inner liner with composite alloy layer and preparation method of inner liner |
| CN109244686A (en) * | 2018-07-26 | 2019-01-18 | 合德华厦安防科技有限公司 | A kind of plug and preparation method thereof for earthed system |
| 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 |
| CN112343948A (en) * | 2020-11-05 | 2021-02-09 | 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN105798550A (en) * | 2016-05-16 | 2016-07-27 | 无锡威孚精密机械制造有限责任公司 | Destressing treatment method for bimetallic oil distribution disc |
| 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 |
| CN106694889A (en) * | 2017-01-17 | 2017-05-24 | 苏州艾盾合金材料有限公司 | Inner liner with composite alloy layer and preparation method of inner liner |
| CN109244686A (en) * | 2018-07-26 | 2019-01-18 | 合德华厦安防科技有限公司 | A kind of plug and preparation method thereof for earthed system |
| 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 |
| CN112343948A (en) * | 2020-11-05 | 2021-02-09 | 三阳纺织有限公司 | Manufacturing method of mandrel component, mandrel component and textile machine applying mandrel component |
| WO2022095111A1 (en) * | 2020-11-05 | 2022-05-12 | 三阳纺织有限公司 | Manufacturing method for mandrel part, mandrel part, and textile machinery applying same |
| 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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| CN101956763B (en) | 2012-05-23 |
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