CN1928377A - Stainless steel solid bearing holder and its making method - Google Patents
Stainless steel solid bearing holder and its making method Download PDFInfo
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- CN1928377A CN1928377A CN 200610047950 CN200610047950A CN1928377A CN 1928377 A CN1928377 A CN 1928377A CN 200610047950 CN200610047950 CN 200610047950 CN 200610047950 A CN200610047950 A CN 200610047950A CN 1928377 A CN1928377 A CN 1928377A
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- stainless steel
- solid bearing
- retainer
- bearing holder
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Abstract
The invention relates to a stainless steel solid retainer and the manufacturing method, characterized in that said solid retainer is low-carbon austenitic in whole; by precision-investment casting technology retainer blank with less than 20% metal allowance of finish product is made and then the finish product is machined mechanically. Because there are good corrosion and shock resistance so on in low-carbon austenitic the retainer with low-carbon austenitic can replace copper alloy and is widely applied in sea-water environment, chemical equipment and so on, in which there is corrosion medium with acid, alkali and salt. It is applied in the area in which high shock resistance is required such as rolling bearing. Because of casting technology the utilization ratio of stock is improved and the production cost is decreased. There are long-range market prospect in the invention.
Description
Technical field
The present invention relates to retainer, relate in particular to a kind of stainless steel solid bearing holder and manufacture method thereof.
Background technique
The material that is used for the processing entity retainer in the market be respectively nylon, Cuprum alloy and, low carbon steel.Nylon material is subjected to the bearing working Temperature Influence bigger, and thermal expansion coefficient is big under high temperature condition, and the strength of materials is lower than carbon steel or Cuprum alloy, in, do not adopt on the large-scale specification design bearing; The retainer good toughness of carbon steel material, price are low, but noise greatly, not anticorrosion, poor reliability do not adopt by people yet; Retainer working life of Cu alloy material is relatively long, noise is little, good reliability is in the retainer of nylon and carbon steel material, but the toughness of Cu alloy material is poor slightly, on the high side, particularly a large amount of consumption of Cu alloy material, to the waste of nonferrous metal resource, more and more cause showing great attention to of people.
On the other hand, the existing manufacturing process of solid bearing cage is: at first the geometrical shape by retainer is processed into a lasso with the method for forging, and then takes mechanical processing tools to be processed into retainer.Wherein, the place, pocket hole of bearing roller being installed, can only be with the method for cutting this part material to be machined away, and the stock utilization of the retainer that this method is produced only is 30% of an inventory, and remaining 70% quilt is become metal fillings and machines away.The solid bearing cage that causes Cu alloy material or stainless steel material therefrom is high always in product price, so can not be designed personnel and Production of bearing person adopts.
Summary of the invention
Problem in view of the existence of solid bearing cage prior art, the present invention utilizes stainless steel and precision-investment casting method to make the blank of solid bearing cage, and obtain finished parts through a small amount of machining, thus increased substantially the utilization ratio of material, reduced cost of production.
Technical solution of the present invention is achieved in that
A kind of stainless steel solid bearing holder is characterized in that the low carbon austenitic stainless steel of the whole employing of described solid bearing cage.
Described low carbon austenitic stainless steel is ZG1Cr18Ni9Ti or ZG0Cr18Ni9Ti, and the mass percent of its Kohlenstoffgehalt is 0.06%～0.08%, and the mass percent of other alloying constituents is respectively:
Manganese Mn 0.8%～2.0%; Chromium Cr 17.0%～20.0%; Nickel 8.0%～11.0%; Titanium Ti 0.68～0.7%; Silicon Si 1.2%～1.5%.
A kind of manufacture method of described stainless steel solid bearing holder, it is characterized in that its adopts investment precision casting technology that stainless steel material is made the blank of the little solid bearing cage to finished product about 20% of reprocessing surplus, be finish-machined to the stainless steel solid bearing holder finished parts through the machining means again; Its process step is as follows:
(1) easy fusible pattern Mould Machining: the easy fusible pattern mould of drawing Design and Machining of pressing retainer;
(2) meltable molded making: cerul mould material and batch mixes, compression moulding;
(3) shell processing typing: look the physical dimension of easy fusible pattern, the dip-coating material and the several that sands; And removal moisture drying;
(4) take off cured: easy fusible pattern adopted hot water is molten to be lost or the high compressed steam dewaxing;
(5) shell roasting; Carry out roasting with coal stove or oil oven, sintering temperature 800-900 ℃, holding time 1-2 hour;
(6) will cast after the stainless steel melting;
(7) carry out the making that machining is finished retainer after scarfing cinder, the polishing.
This method also is applicable to the manufacturing production of the solid bearing cage of cast carbon steel, low alloy steel.
Compared with prior art, advantage of the present invention is conspicuous: adopt the method for precision-investment casting can the production structure complexity, the higher solid bearing cage of required precision, the machining allowance of its blank is reduced to about 20% of finished product, than existing method of forging the full machining in back, total processing cost has reduced about 30%; Thereby improved raw-material utilization ratio, reduced cost of production.The corrosivity of low simultaneously carbon austenitic stainless steel excellent acid alkali salt, good toughness and shock resistance, and wear resistance is good, noise is low, reliability is high, the advantage of long service life replaces in the medium that Cuprum alloy is widely used in seawater operating environment, chemical industry equipment etc. and has the soda acid salt corrosion and to impact resistance this stainless steel solid bearing holder to have higher requirements occasion such as in the fields such as roller-mill bearing.And adopt the method production retainer of the alternative full machining of method of precision-investment casting to have more long-range market prospects.
Description of drawings
3 in accompanying drawing of the present invention, wherein
Fig. 1 is the structural representation of investment casting solid bearing cage of the present invention;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is a retainer pocket hole sectional view.
Embodiment
Embodiment 1: the precision-investment casting method is produced the solid bearing cage about 2kg in batches
Select for use ZG1Cr18Ni9Ti or ZG0Cr18Ni9Ti to make stainless steel solid bearing holder, the mass percent of its Kohlenstoffgehalt is 0.06%～0.08%, and the mass percent of other alloying constituents is respectively: manganese Mn0.8%～2.0%; Chromium Cr 17.0%～20.0%; Nickel 8.0%～11.0%; Titanium Ti 0.68～0.7%; Silicon Si 1.2%～1.5%.
Stainless steel solid bearing holder is made in its precision-investment casting, and its process step is as follows:
(1) easy fusible pattern Mould Machining: the easy fusible pattern mould of drawing Design and Machining of pressing retainer;
(2) meltable molded making: 64 ° of paraffin of cerul mould material selection and batch mixes, compression moulding;
(3) shell processing typing: dip-coating material and sand removal moisture drying 8～10 times;
(4) high compressed steam method dewaxing: easy fusible pattern is adopted the vapor tension steam method dewaxing of 0.6-0.75MPa;
(5) shell roasting; Carry out roasting with oil oven, sintering temperature 800-900 ℃, holding time 1-2 hour;
(6) will cast after ZG1Cr18Ni9Ti or the ZG0Cr18Ni9Ti melting;
(7) be machined into the type retainer after scarfing cinder, the polishing.
The batch process here is meant that the yielding capacity of every day is in about situation more than 3 tons.
Embodiment 2: the precision-investment casting method is produced the solid bearing cage about 4kg
Low carbon austenitic stainless steel is still selected ZG1Cr18Ni9Ti or ZG0Cr18Ni9Ti for use, and the process step of its precision-investment casting stainless steel solid bearing holder is as follows:
(1) easy fusible pattern Mould Machining: the easy fusible pattern mould of drawing Design and Machining of pressing retainer;
(2) meltable molded making: 64 ° of paraffin of cerul mould material selection and batch mixes, compression moulding;
(3) shell processing typing: dip-coating material and sand 10～20 times, removal moisture drying;
(4) the molten mistake of hot water is taken off cured: easy fusible pattern is adopted the molten mistake method dewaxing of 95-98 ℃ of water temperature; The molten mistake of hot water is taken off cured method and is primarily aimed at the output of every day in the situation below 3 tons;
(5) shell roasting; Carry out roasting with coal stove or oil oven, sintering temperature 800-900 ℃, holding time 1-2 hour.
(6) select to cast after the low alloy steel melting.
(7) be machined into the type retainer after scarfing cinder, the polishing.
Claims (4)
1, a kind of stainless steel solid bearing holder is characterized in that the low carbon austenitic stainless steel of the whole employing of described solid bearing cage.
2, stainless steel solid bearing holder according to claim 1, it is characterized in that described low carbon austenitic stainless steel is ZG1Cr18Ni9Ti or ZG0Cr18Ni9Ti, the mass percent of its Kohlenstoffgehalt is 0.06%～0.08%, and the mass percent of other alloying constituents is respectively:
Manganese Mn 0.8%～2.0%; Chromium Cr 17.0%～20.0%; Nickel 8.0%～11.0%; Titanium Ti 0.68～0.7%; Silicon Si 1.2%～1.5%.
3, a kind of manufacture method of stainless steel solid bearing holder as claimed in claim 1, it is characterized in that its adopts investment precision casting technology that stainless steel material is made the blank of the little solid bearing cage to finished product about 20% of reprocessing surplus, be finish-machined to stainless steel solid bearing holder through the machining means again; Its process step is as follows:
(1) easy fusible pattern Mould Machining: the easy fusible pattern mould of drawing Design and Machining of pressing retainer;
(2) meltable molded making: cerul mould material and batch mixes, compression moulding;
(3) shell processing typing: look the physical dimension of easy fusible pattern, the dip-coating material and the several that sands; And removal moisture drying;
(4) take off cured: easy fusible pattern adopted hot water is molten to be lost or the high compressed steam dewaxing;
(5) shell roasting; Carry out roasting with coal stove or oil oven, sintering temperature 800-900 ℃, holding time 1-2 hour;
(6) will cast after the stainless steel melting;
(7) carry out the making that machining is finished retainer after scarfing cinder, the polishing.
4, the manufacture method of stainless steel solid bearing holder according to claim 3 is characterized in that this method also is applicable to the manufacturing production of the solid bearing cage of cast carbon steel, low alloy steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100479505A CN100410555C (en) | 2006-09-28 | 2006-09-28 | Stainless steel solid bearing holder and its making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100479505A CN100410555C (en) | 2006-09-28 | 2006-09-28 | Stainless steel solid bearing holder and its making method |
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| Publication Number | Publication Date |
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| CN1928377A true CN1928377A (en) | 2007-03-14 |
| CN100410555C CN100410555C (en) | 2008-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100479505A Expired - Fee Related CN100410555C (en) | 2006-09-28 | 2006-09-28 | Stainless steel solid bearing holder and its making method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463321A (en) * | 2010-11-01 | 2012-05-23 | 东兰音乐铜鼓文化传播有限责任公司 | Technological method for producing music bronze drum through hot mould casting |
| CN104141094A (en) * | 2014-07-26 | 2014-11-12 | 宁国市大泉机械有限公司 | Stainless steel casting |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110904383A (en) * | 2019-12-02 | 2020-03-24 | 张家港宏昌钢板有限公司 | Sintering method for trolley pin |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103875B (en) * | 1986-05-30 | 1988-03-23 | 辽宁省鞍山轴承厂 | Method for making of as cast iron bearing solid keeping frame |
| JP3021902B2 (en) * | 1992-01-17 | 2000-03-15 | エヌティエヌ株式会社 | Rolling bearings for semiconductor manufacturing equipment |
| CN1103377C (en) * | 2000-08-24 | 2003-03-19 | 刘宝第 | High-Al zinc-base alloy for manufacturing holder of rolling bearing body |
| JP2002266869A (en) * | 2001-03-13 | 2002-09-18 | Nsk Ltd | Steel retainer for rolling bearing |
| JP2005172056A (en) * | 2003-12-09 | 2005-06-30 | Ntn Corp | Non-magnetic rolling bearing |
| JP2005273799A (en) * | 2004-03-25 | 2005-10-06 | Nsk Ltd | Roller bearing and pivot bearing device for swing arm |
-
2006
- 2006-09-28 CN CNB2006100479505A patent/CN100410555C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463321A (en) * | 2010-11-01 | 2012-05-23 | 东兰音乐铜鼓文化传播有限责任公司 | Technological method for producing music bronze drum through hot mould casting |
| CN104141094A (en) * | 2014-07-26 | 2014-11-12 | 宁国市大泉机械有限公司 | Stainless steel casting |
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| Publication number | Publication date |
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| CN100410555C (en) | 2008-08-13 |
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Address after: Jinzhou District of Dalian City, Liaoning province 116100 friendship Street No. 396 Hing Man Patentee after: Dalian Sanhuan Composite Material Technology Development Co., Ltd. Address before: Jinzhou District of Dalian City, Liaoning province 116100 friendship Street No. 396 Hing Man Patentee before: Dalian Sanhuan Composite Material Technology Development Co., Ltd. |
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Address after: 116200 Dalian Sanhuan composite material technology development Limited by Share Ltd, thirty Lingang New Industrial Zone, Pu Wan New District, Liaoning, Dalian Patentee after: Dalian Sanhuan Composite Material Technology Development Co., Ltd. Address before: Jinzhou District of Dalian City, Liaoning province 116100 friendship Street No. 396 Hing Man Patentee before: Dalian Sanhuan Composite Material Technology Development Co., Ltd. |
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