CN105041658A - Rolling piston for refrigeration compressor and manufacturing method thereof - Google Patents
Rolling piston for refrigeration compressor and manufacturing method thereof Download PDFInfo
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- CN105041658A CN105041658A CN201510488197.2A CN201510488197A CN105041658A CN 105041658 A CN105041658 A CN 105041658A CN 201510488197 A CN201510488197 A CN 201510488197A CN 105041658 A CN105041658 A CN 105041658A
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Abstract
Provided is a rolling piston for a rotary type refrigeration compressor. The rolling piston is made of a steel tube which is formed by conducting cold-rolling on carburizing steel. Chemical components of the carburizing steel include 0.17%-0.23% of C, 0.17%-0.37% of Si, 0.80%-1.10% of Mn, 1.00%-1.30% of Cr, 0.04%-0.10% of Ti and the balance Fe. The rolling piston has the advantages that the supply of goods is ample, the price is low, the cost is reduced, and the environment is not polluted.
Description
Technical field
The present invention relates to a kind of refrigeration compressor parts and manufacture method thereof.
Background technique
Rotary compressor for refrigerant, also known as rolling rotor type compressor, it utilizes piston to rotate to compress refrigerant gas, to have put much years on market, and it is one of the most frequently used at present compressor.
Rolling piston is the strength member of rotary compressor for refrigerant cover, its bias being arranged on the eccentric shaft of compressor turns, roll along cylinder wall during refrigeration, slide plate under spring force with the cylindrical wall close contact of rolling rotor, composition motive sealing, adopt novel environment-friendly refrigerant, high efficiency along with rotary compressor and energy-conservation etc. to become more diverse, the rolling piston that can be applicable under the rigor condition such as high load, high power, high temperature, high pressure is had higher requirement.
For a long time, the material of rolling piston adopts the ironcasting hardened being greater than 70% containing Ni, Mo, Cr alloying element, content of pearlite in alloy usually, and by making its hardness be HRC52-55 after quenching, tempering, this material has narrow limitation, and the hardness of its obtained rolling piston, wear resistance and contact fatigue life neither be very good.The manufacture of rolling piston generally adopts the method for die casting or continuous casting tubulose, first cast out body, then blank, carry out endoporus, cylindrical lathe cutting, peeling grinding more again, therefore the body after casting needs to leave more surplus, the utilization ratio of piston material only has about 60%, and complicate fabrication process, manufacture cost are high; Also because rolling piston adopts casting method manufacture, cast iron process can produce a large amount of " three wastes ", have a strong impact on environment, pollute, and working environment is poor, also affects the healthy of operator.
Summary of the invention
Technical problem to be solved by this invention be overcome prior art above-mentioned deficiency and a kind of refrigeration compressor rolling piston is provided, make it be easy to manufacture and there is good wear resistance and longer contact fatigue life.
Present invention also offers a kind of manufacture method of rotary compressor for refrigerant rolling piston, make that rolling piston manufacture is simple, cost is low and free from environmental pollution.
The present invention solves the problems of the technologies described above adopted technological scheme:
A kind of rotary compressor for refrigerant rolling piston, described rolling piston material be steel for carburizing cold rolling after steel pipe.
Chemical composition following % by weight: the C0.17 ~ 0.23Si0.17 ~ 0.37Mn0.90 ~ 1.20Cr0.90 ~ 1.20Fe surplus of above-mentioned steel for carburizing.
The chemical composition of above-mentioned steel for carburizing also can be following % by weight: C0.17 ~ 0.23Si0.17 ~ 0.37Mn0.80 ~ 1.10Cr1.00 ~ 1.30Ti0.04 ~ 0.10Fe surplus.
After above-mentioned piston material heat treatment, its hardness is 56-63HRC.
After above-mentioned piston material heat treatment, microstructure is made up of cryptocrystal, tiny cryptocrystalline martensite and equally distributed residual carbon compound and a small amount of retained austenite.
Accordingly provide a kind of manufacture method of rotary compressor for refrigerant rolling piston, it comprises the steps:
(1), select steel for carburizing, cold rolling one-tenth meets the steel pipe of precision needed for rolling piston on request;
(2), pipe cutting is to the size of required rolling piston circle material;
(3), carburizing and quenching rolling piston circle material;
(4), cryogenic treatment rolling piston circle material;
(5), temper rolling piston circle material;
(6), each face of rolling piston circle material is roughly ground;
(7) each face of (fine finishing) rolling piston circle material, is refined to reaching regulation requirement.
As stated above, qualified rotary compressor for refrigerant rolling piston can just be produced.
Compared with prior art, the invention has the advantages that:
1, the steel for carburizing source of goods is more sufficient, and price is low, and cost is economized.
2, because steel for carburizing has good processability, part surface can obtain low roughness, and during running, surface friction drag is little, energy consumption is low.
3, rolling piston adopts the processing of steel pipe form, and endoporus and cylindrical all only need a small amount of turning peeling, then leave a small amount of grinding allowance, can heat-treat after the cutting of steel pipe materials in the tube, cutting workload can reduce more than 50%, and steel utilization ratio can reach more than 90%, because this reducing manufacture cost.
4, its rolling piston materials of manufacture method of the present invention do not adopt cast iron, and adopt common steel for carburizing, eliminate casting method, and avoiding the pollution to environment generation and highly energy-consuming, is a kind of good method of energy-saving and environmental protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention rolling piston.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
A kind of rotary compressor for refrigerant rolling piston, described piston material be steel for carburizing cold rolling after steel pipe.
Described rolling piston material be steel for carburizing cold rolling after steel pipe.
In the present embodiment, chemical composition following % by weight: the C0.17 ~ 0.23Si0.17 ~ 0.37Mn0.90 ~ 1.20Cr0.90 ~ 1.20Fe surplus of steel for carburizing.Be specially: 20CrMn.
In another embodiment, the chemical composition of above-mentioned steel for carburizing is following % by weight: C0.17 ~ 0.23Si0.17 ~ 0.37Mn0.80 ~ 1.10Cr1.00 ~ 1.30Ti0.04 ~ 0.10Fe surplus.Be specially: 20CrMnTi.
The manufacture method of rotary compressor for refrigerant rolling piston, it comprises the steps:
(1), select steel for carburizing, cold rolling one-tenth meets the steel pipe of precision needed for rolling piston on request;
(2), with turning or milling pipe cutting to the size of required rolling piston circle material;
(3), carburizing and quenching rolling piston circle material;
(4), low-temperature tempering process rolling piston circle material;
(5), cryogenic treatment rolling piston circle material;
(6), each face of rolling piston circle material is roughly ground;
(7), fine grinding or each face of honing rolling piston circle material are to reaching regulation requirement.
Just satisfactory rolling piston has been obtained by said method.
During the cold rolling one-tenth steel pipe of above-mentioned steel for carburizing, by the special cold finish rolling of rolling piston inside/outside diameter size, a small amount of machining allowance can be stayed, can directly grinding after turning and raw carbon quenching.
Due to above-mentioned rolling piston need high temperature, high pressure, bear high contact conditions under operate for a long time, for making it have the low surface friction drag of anticorrosive anti-wear, rolling piston process is undertaken by following requirement:
In step (three), rolling piston carburizing quenching process is: medium is oil, and medium is oily, and carburizing temperature is 860-930 DEG C, and the time is 120--240 minute, and carbon potential cp% is 0.3-1.2%; Quenching temperature is 850-890 DEG C.
In step (four), cryogenic treatment rolling piston circle material temperature degree is-60--110 DEG C, and the time is 60-150 minute.
In step (five), rolling piston circle material tempering temperature is 160-200 DEG C, insulation 120-210 minute.
Above-mentioned rolling piston quenching, temper number require that, for-56-63HRC, temper resistance checks that hardness error is not more than 1HRC.
After above-mentioned rolling piston process, microstructure is made up of cryptocrystal, tiny cryptocrystalline martensite and equally distributed residual carbon compound and a small amount of retained austenite.
For ensureing precision and the quality of product, each face of above-mentioned corase grind steel pipe is preferably carried out in the following order: first roughly grind U, V Double End, then roughly grinds cylindrical J face, finally roughly grinds inner circle I face.
For ensureing precision and the quality of product, above-mentioned fine grinding or each face of honing steel pipe are preferably carried out in the following order: first refine U, V Double End, then fine cylindrical J face, fine grinding inner circle I face, last smart top gem of a girdle-pendant inner circle I face.
Claims (10)
1. a rotary compressor for refrigerant rolling piston, it is characterized in that: described piston material be steel for carburizing cold rolling after steel pipe, chemical composition following % by weight: the C0.17 ~ 0.23Si0.17 ~ 0.37Mn0.90 ~ 1.20Cr0.90 ~ 1.20Fe surplus of steel for carburizing.
2. a rotary compressor for refrigerant rolling piston, it is characterized in that: described piston material be steel for carburizing cold rolling after steel pipe, chemical composition following % by weight: C0.17 ~ 0.23Si0.17 ~ 0.37Mn0.80 ~ 1.10Cr1.00 ~ 1.30Ti0.04 ~ 0.10Fe surplus of steel for carburizing.
3. rotary compressor for refrigerant rolling piston as claimed in claim 1 or 2, is characterized in that: after described piston material heat treatment, its hardness is 56-63HRC.
4. rotary compressor for refrigerant rolling piston as claimed in claim 3, is characterized in that: after described piston material heat treatment, microstructure is made up of cryptocrystal, tiny cryptocrystalline martensite and equally distributed residual carbon compound and a small amount of retained austenite.
5. a manufacture method for rotary compressor for refrigerant rolling piston, is characterized in that: it comprises the steps:
(1), select steel for carburizing, cold rolling one-tenth meets the steel pipe of precision needed for rolling piston on request;
(2), pipe cutting is to the size of required rolling piston circle material;
(3), carburizing and quenching rolling piston circle material;
(4), cryogenic treatment rolling piston circle material;
(5), temper rolling piston circle material;
(6), each face of rolling piston circle material is roughly ground;
(7) each face of (fine finishing) rolling piston circle material, is refined to reaching regulation requirement.
6. the manufacture method of rotary compressor for refrigerant rolling piston as claimed in claim 5, it is characterized in that: step (three) described carburizing and quenching rolling piston circle material process conditions are: medium is oil, carburizing temperature is 860-930 DEG C, time is 120--240 minute, and carbon potential cp% is 0.3-1.2%; Quenching temperature is 850-890 DEG C.
7. the manufacture method of the rotary compressor for refrigerant rolling piston as described in claim 5 or 6, is characterized in that: in step (four), cryogenic treatment rolling piston circle material temperature degree is-60--110 DEG C, and the time is 60-150 minute.
8. the manufacture method of the rotary compressor for refrigerant rolling piston as described in claim 5 or 6, is characterized in that: in step (five), rolling piston circle material tempering temperature is 160-200 DEG C, insulation 120-210 minute.
9. the manufacture method of the rotary compressor for refrigerant rolling piston as described in claim 5 or 6, is characterized in that: described each face of corase grind steel pipe is carried out in the following order: first roughly grind U, V Double End, then roughly grinds cylindrical J face, finally roughly grinds inner circle I face.
10. the manufacture method of the rotary compressor for refrigerant rolling piston as described in claim 5 or 6, is characterized in that: described each face of fine grinding steel pipe is carried out in the following order: first refine U, V Double End, then fine cylindrical J face, last lappingout inner circle I face.
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| CN201510488197.2A CN105041658B (en) | 2015-08-11 | 2015-08-11 | A kind of refrigeration compressor rolling piston and its manufacturing method |
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| CN201510488197.2A CN105041658B (en) | 2015-08-11 | 2015-08-11 | A kind of refrigeration compressor rolling piston and its manufacturing method |
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| CN105041658B CN105041658B (en) | 2018-06-12 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382633A (en) * | 2015-12-28 | 2016-03-09 | 常熟市尚高机械设备有限公司 | Grinding process of stainless steel pipe fitting |
| CN105673502A (en) * | 2016-01-28 | 2016-06-15 | 宁波甬微集团有限公司 | Manufacture method for rolling piston for compressor |
| CN105839013A (en) * | 2016-04-15 | 2016-08-10 | 宁波甬微集团有限公司 | Sliding vane for refrigeration compressor and manufacturing method of sliding vane |
| CN105886895A (en) * | 2016-04-18 | 2016-08-24 | 宁波甬微集团有限公司 | Manufacturing method for sliding sheet of refrigeration compressor |
| CN106181271A (en) * | 2016-06-30 | 2016-12-07 | 宁波甬微集团有限公司 | Refrigeration compressor rolling piston manufacture method and rolling piston thereof |
| CN107401505A (en) * | 2017-08-30 | 2017-11-28 | 广东美芝制冷设备有限公司 | Rotary compressor friction pair and compressor |
| CN107420309A (en) * | 2017-08-30 | 2017-12-01 | 广东美芝制冷设备有限公司 | Rotary compressor piston and preparation method thereof |
| CN107676264A (en) * | 2017-08-30 | 2018-02-09 | 广东美芝制冷设备有限公司 | Rotary compressor piston and preparation method thereof |
| CN108723726A (en) * | 2018-04-24 | 2018-11-02 | 华意压缩机股份有限公司 | Piston and processing technology thereof |
| CN110116341A (en) * | 2018-12-24 | 2019-08-13 | 浙江百达精工股份有限公司 | The piston fine-grinding fixture of compressor piston manufacturing method and centreless grinding machine external |
| CN112833016A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Hollow piston manufacturing method, hollow piston, rotary compressor and air conditioner |
| CN114381651A (en) * | 2020-10-06 | 2022-04-22 | 宁波甬微集团有限公司 | Rolling piston for rotary refrigeration compressor and manufacturing method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853502A (en) * | 1995-08-11 | 1998-12-29 | Sumitomo Metal Industries, Ltd. | Carburizing steel and steel products manufactured making use of the carburizing steel |
| JP2003328079A (en) * | 2002-05-14 | 2003-11-19 | Nippon Steel Corp | Steel pipe superior in workability for cold forging, and manufacturing method therefor |
| JP2005105379A (en) * | 2003-09-30 | 2005-04-21 | Sanyo Special Steel Co Ltd | Method for manufacturing boron-added case-hardened steel pipe superior in cold workability and grain size property |
| CN101158356A (en) * | 2007-11-02 | 2008-04-09 | 宁波甬微集团有限公司 | Rolling piston and manufacturing method thereof for rotary type cold compressor |
| CN101646788A (en) * | 2007-03-29 | 2010-02-10 | 住友金属工业株式会社 | Case-hardened steel pipe excellent in workability and process for production thereof |
| CN104328266A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter thin-walled bearing ring |
-
2015
- 2015-08-11 CN CN201510488197.2A patent/CN105041658B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853502A (en) * | 1995-08-11 | 1998-12-29 | Sumitomo Metal Industries, Ltd. | Carburizing steel and steel products manufactured making use of the carburizing steel |
| JP2003328079A (en) * | 2002-05-14 | 2003-11-19 | Nippon Steel Corp | Steel pipe superior in workability for cold forging, and manufacturing method therefor |
| JP2005105379A (en) * | 2003-09-30 | 2005-04-21 | Sanyo Special Steel Co Ltd | Method for manufacturing boron-added case-hardened steel pipe superior in cold workability and grain size property |
| CN101646788A (en) * | 2007-03-29 | 2010-02-10 | 住友金属工业株式会社 | Case-hardened steel pipe excellent in workability and process for production thereof |
| CN101158356A (en) * | 2007-11-02 | 2008-04-09 | 宁波甬微集团有限公司 | Rolling piston and manufacturing method thereof for rotary type cold compressor |
| CN104328266A (en) * | 2014-12-02 | 2015-02-04 | 江阴吉爱倍万达精工有限公司 | Heat treatment process of large-diameter thin-walled bearing ring |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382633A (en) * | 2015-12-28 | 2016-03-09 | 常熟市尚高机械设备有限公司 | Grinding process of stainless steel pipe fitting |
| CN105673502A (en) * | 2016-01-28 | 2016-06-15 | 宁波甬微集团有限公司 | Manufacture method for rolling piston for compressor |
| CN105839013A (en) * | 2016-04-15 | 2016-08-10 | 宁波甬微集团有限公司 | Sliding vane for refrigeration compressor and manufacturing method of sliding vane |
| CN105886895A (en) * | 2016-04-18 | 2016-08-24 | 宁波甬微集团有限公司 | Manufacturing method for sliding sheet of refrigeration compressor |
| CN106181271A (en) * | 2016-06-30 | 2016-12-07 | 宁波甬微集团有限公司 | Refrigeration compressor rolling piston manufacture method and rolling piston thereof |
| CN107420309A (en) * | 2017-08-30 | 2017-12-01 | 广东美芝制冷设备有限公司 | Rotary compressor piston and preparation method thereof |
| CN107401505A (en) * | 2017-08-30 | 2017-11-28 | 广东美芝制冷设备有限公司 | Rotary compressor friction pair and compressor |
| CN107676264A (en) * | 2017-08-30 | 2018-02-09 | 广东美芝制冷设备有限公司 | Rotary compressor piston and preparation method thereof |
| CN108723726A (en) * | 2018-04-24 | 2018-11-02 | 华意压缩机股份有限公司 | Piston and processing technology thereof |
| CN110116341A (en) * | 2018-12-24 | 2019-08-13 | 浙江百达精工股份有限公司 | The piston fine-grinding fixture of compressor piston manufacturing method and centreless grinding machine external |
| CN110116341B (en) * | 2018-12-24 | 2024-08-20 | 浙江百达精工股份有限公司 | Method for manufacturing piston of rotary piston compressor |
| CN114381651A (en) * | 2020-10-06 | 2022-04-22 | 宁波甬微集团有限公司 | Rolling piston for rotary refrigeration compressor and manufacturing method thereof |
| CN112833016A (en) * | 2021-03-22 | 2021-05-25 | 广东美芝精密制造有限公司 | Hollow piston manufacturing method, hollow piston, rotary compressor and air conditioner |
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