CN104564676A - Rotary compressor and method for making pump body component of rotary compressor - Google Patents
Rotary compressor and method for making pump body component of rotary compressor Download PDFInfo
- Publication number
- CN104564676A CN104564676A CN201410727878.5A CN201410727878A CN104564676A CN 104564676 A CN104564676 A CN 104564676A CN 201410727878 A CN201410727878 A CN 201410727878A CN 104564676 A CN104564676 A CN 104564676A
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- Prior art keywords
- cylinder
- cast iron
- metal
- piston
- rotary compressor
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
- F04C18/3564—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/21—Manufacture essentially without removing material by casting
Abstract
The invention discloses a rotary compressor and a method for making a pump body component of the rotary compressor. The rotary compressor comprises a pump body assembly, wherein the pump body assembly comprises an upper bearing, a lower bearing, a cylinder, a piston, a slip sheet and a crankshaft; and at least one of the upper bearing, the lower bearing, the cylinder, the piston, the slip sheet and the crankshaft is produced by virtue of evaporative pattern casting. Therefore, the casting blank precision can be obviously improved, the working allowance is almost avoided, the material waste is reduced, the size accuracy of each pump body component is improved, and the cost is reduced.
Description
Technical field
The invention belongs to compressor field, specifically, the present invention relates to the method for the pump assembly of rotary compressor and this rotary compressor of preparation.
Background technique
The compression assembly of rotary compressor is by cylinder, to make eccentric pivotal bent axle at the center of cylinder, be set in the piston in crankshaft eccentric portion, with piston contact and with its altogether cylinder is divided into hyperbaric chamber and low-pressure cavity slide plate, design the vane slot holding slide plate on cylinder and the main bearing being arranged on cylinder both sides and supplementary bearing.The compression work of rotary compressor completes in circular cylinder, Normal squeezing machine cylinder needs fixing formation cavity together with metal (upper, cylinder generally designs retaining thread hole, mounting-positioning holes, vane slot, and side can arrange suction port and spring eye etc., metal (upper also can arrange unthreaded hole, delivery valve seat and exhaust port etc., double-exhaust in this way simultaneously, and lower bearing also can increase delivery valve seat and exhaust port, crankshaft designs oilhole, slide plate design spring groove.In current correlation technique, cylinder, metal (upper, bent axle, slide plate, Piston Machining usually go out spray with sand casting process and machine, because the precision of sand casting process part is lower, distortion is large, and hole in piece part and slot are not all arranged, spray to be processed into cylinder, metal (upper, bent axle technological process are very complicated, work efficiency is low, and cost is high, and waste material is many, cause the wasting of resources, harm is brought to environment.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention be to propose that a kind of casting accuracy is high, cost is low, the rotary compressor of excellent performance and prepare the method for pump assembly of this rotary compressor.
First, according to an aspect of the present invention, the present invention proposes a kind of rotary compressor, described compressor has pump assembly, described pump assembly comprises upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, and at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle is prepared by lost foam casting.
Spray precision can be significantly improved thus, almost without machining allowance, not only reduce waste of material, improve the size precision of above-mentioned each pump assembly simultaneously, reduce costs.
In some embodiments of the invention, at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle is separately made up of at least one of cast iron and cast steel.Combination property can be improved further thus.
In some embodiments of the invention, described cast iron is gray cast iron or spheroidal graphite cast iron.Combination property can be improved further thus.
In some embodiments of the invention, described cast iron is Ni-Cr-Mo gray cast iron.Combination property can be improved further thus.
In some embodiments of the invention, the hardness of at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle is 80 ~ 120HRB, and tensile strength is greater than 200MPa.The requirement of rotary compressor can be met thus.
In some embodiments of the invention, the metallographic structure of at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle comprises pearlite and equally distributed spheroidal graphite or pearlite and equally distributed flake graphite.The performance such as tensile strength, hardness can be improved further thus.
According to a second aspect of the invention, the present invention proposes a kind of method preparing the pump assembly of foregoing rotary compressor, described pump assembly comprises upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, it is characterized in that, comprising:
(1) paraffin or foam is utilized to prepare the model of at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle;
(2) to described model surface dip-coating refractory paint and drying;
(3) dried model is carried out in sandbox bury sand molding;
(4) described bury sand molding after sandbox be negative pressure state under pour into the liquid metal of fusing, extract out simultaneously by described liquid metal casting displacement to make model gasify;
(5) the described sandbox after casting displacement is carried out cooling, knockout, to obtain at least one in described bearing, lower bearing, cylinder, piston, slide plate and bent axle.
Thus, the semifinished product precision of upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and bent axle 60 can be significantly improved by said method, be accurate to almost without machining allowance, not only reduce waste of material, improve the size precision of above-mentioned each pump assembly simultaneously.The operations such as above-mentioned casting method non-trimming of the present invention, deburring and withdrawing pattern, reduce labor hour, enhance productivity, thus greatly saved mechanic's cost, and then indirectly reduce the cost preparing above-mentioned each pump assembly.
In some embodiments of the invention, at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, described metal is separately at least one of cast iron and cast steel.
In some embodiments of the invention, described cast iron is gray cast iron or spheroidal graphite cast iron.
In some embodiments of the invention, described cast iron is Ni-Cr-Mo gray cast iron.
Accompanying drawing explanation
Fig. 1 is the structural representation of the rotary compressor according to the embodiment of the present invention.
Fig. 2 is the structural representation of cylinder in the pump assembly according to the rotary compressor of the embodiment of the present invention.
Fig. 3 is the structural representation of upper bearing (metal) in the pump assembly according to the rotary compressor of the embodiment of the present invention.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
According to an aspect of the present invention, the present invention proposes a kind of rotary compressor, as shown in Figure 1, compressor has pump assembly, and pump assembly comprises upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and bent axle 60.According to a particular embodiment of the invention, be one of at least prepared by lost foam casting in upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and bent axle 60.
One of at least spray precision can be significantly improved thus in the upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and the bent axle 60 that prepare of lost foam casting, almost without machining allowance, not only reduce waste of material, improve the size precision of above-mentioned each pump assembly simultaneously.Prepare above-mentioned each pump assembly without the need to mold joint and without core by lost foam casting simultaneously, be particularly suitable for the casting of the foundry goods such as the upper bearing (metal) 10 of complex geometry, lower bearing 20, cylinder 30.In addition, the above-mentioned each pump assembly prepared by lost foam casting eliminates the operations such as overlap, deburring and withdrawing pattern, reduces labor hour, enhances productivity, thus greatly saved mechanic's cost, and then indirectly reduce the cost preparing above-mentioned each pump assembly.Such as, according to concrete example of the present invention, in the pump assembly adopting lost foam casting to prepare, cylinder cost can decline 20%, and the cost of upper bearing (metal), lower bearing can decline 30%.
According to a particular embodiment of the invention, one of be at least separately made up of at least one of cast iron and cast steel in upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and bent axle 60.Rotary compressor can be met thus to the hardness of above-mentioned pump assembly, many-sided requirement such as tensile strength and antiwear property.
According to concrete example of the present invention, cast iron can be gray cast iron or spheroidal graphite cast iron.According to another concrete example of the present invention, cast iron can be Ni-Cr-Mo gray cast iron.Rotary compressor can be met thus to the hardness of above-mentioned pump assembly, many-sided requirement such as tensile strength and antiwear property.
According to a particular embodiment of the invention, during being made up of gray cast iron spheroidal graphite cast iron of at least one in upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, in the metallographic structure in its above-mentioned each foundry goods obtained, comprise pearlite and equally distributed flake graphite; When being made up of spheroidal graphite spheroidal graphite cast iron, in the metallographic structure in its above-mentioned each foundry goods obtained, comprise pearlite and equally distributed spheroidal graphite.The performance such as tensile strength, wear resistance of above-mentioned each foundry goods can be improved thus further.
According to a particular embodiment of the invention, each pump assembly prepared by lost foam casting, such as upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, its hardness can reach 80 ~ 120HRB, and tensile strength is greater than 200MPa.According to concrete example of the present invention, when adopting lost foam casting to obtain foundry goods being gray cast iron, such as foundry goods is cylinder or upper bearing (metal), and its hardness all can reach 85 ~ 100HRB, and tensile strength is greater than 200MPa.When adopting lost foam casting to obtain foundry goods being spheroidal graphite cast iron, such as foundry goods is bent axle, and its hardness all can reach 80 ~ 120HRB, and tensile strength is greater than 400MPa.The above-mentioned cast properties prepared by above-mentioned lost foam casting thus all can meet the usage requirement of rotary compressor.
According to a second aspect of the invention, the present invention proposes a kind of method preparing the pump assembly of foregoing rotary compressor, described pump assembly comprises upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle.
According to a particular embodiment of the invention, said method specifically comprises:
(1) paraffin or foam is utilized to prepare the model of at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle;
(2) to described model surface dip-coating refractory paint and drying and processing;
(3) model after described drying and processing is carried out in sandbox bury sand molding;
(4) described bury sand molding after sandbox be negative pressure state under pour into the liquid metal of fusing, extract out simultaneously by described liquid metal casting displacement to make model gasify;
(5) the described sandbox after casting displacement is carried out cooling, knockout, to obtain at least one in described bearing, lower bearing, cylinder, piston, slide plate and bent axle.
Thus, the semifinished product precision of upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and bent axle 60 can be significantly improved by said method, be accurate to almost without machining allowance, not only reduce waste of material, improve the size precision of above-mentioned each pump assembly simultaneously.Prepare above-mentioned each pump assembly without the need to mold joint and without core by the method for the above embodiment of the present invention simultaneously, be particularly suitable for the casting of the foundry goods such as the upper bearing (metal) 10 of complex geometry, lower bearing 20, cylinder 30.In addition, the operations such as above-mentioned casting method non-trimming of the present invention, deburring and withdrawing pattern, reduce labor hour, enhance productivity, thus greatly saved mechanic's cost, and then indirectly reduce the cost preparing above-mentioned each pump assembly.Such as, according to concrete example of the present invention, the cost adopting above-mentioned casting method can make to prepare cylinder declines 20%, makes the cost decline 30% preparing upper bearing (metal), lower bearing.
According to a particular embodiment of the invention, one of be at least separately made up of at least one of cast iron and cast steel in the upper bearing (metal) 10, lower bearing 20, cylinder 30, piston 40, slide plate 50 and the bent axle 60 that are prepared by said method.Rotary compressor can be met thus to the hardness of above-mentioned pump assembly, many-sided requirement such as tensile strength and antiwear property.
According to concrete example of the present invention, cast iron can be gray cast iron or spheroidal graphite cast iron.According to another concrete example of the present invention, cast iron can be Ni-Cr-Mo gray cast iron.Rotary compressor can be met thus to the hardness of above-mentioned pump assembly, many-sided requirement such as tensile strength and antiwear property.
According to a particular embodiment of the invention, during being made up of gray cast iron spheroidal graphite cast iron of at least one in upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, in the metallographic structure in its above-mentioned each foundry goods obtained, comprise pearlite and equally distributed flake graphite; When being made up of spheroidal graphite spheroidal graphite cast iron, in the metallographic structure in its above-mentioned each foundry goods obtained, comprise pearlite and equally distributed spheroidal graphite.The performance such as tensile strength, wear resistance of above-mentioned each foundry goods can be improved thus further.
Particularly, method according to the above embodiment of the present invention is adopted to prepare cylinder in pump assembly, the cylinder gray iron casting blank with tapped hole, positioning hole, suction port and vane slot can be cast as, this cylinder blank dimensional accuracy is high, be out of shape little, only need can obtain finished product to a small amount of surplus of vane slot position grinding.Equally, method according to the above embodiment of the present invention is adopted to prepare upper bearing (metal) in pump assembly, lower bearing, the gray iron casting blank with axis hole, tapped hole, unthreaded hole, exhaust port and valve seat can be cast as, this upper bearing (metal) blank and lower bearing blank only need carry out fine ginding processing to shafting oil groove and internal diameter can obtain finished product, and comparatively conventional cast bearing method significantly saves manufacturing procedure.The hardness of the cylinder, upper bearing (metal) and the lower bearing that prepare according to said method all can reach 85 ~ 100HRB, and tensile strength is greater than 200MPa.
Below by specific embodiment, present invention is described, it should be noted that, the following example makes restriction to scope of the present invention never in any form.
Embodiment 1
Prepare the cylinder of rotary compressor, upper bearing (metal) foundry goods, comprise following production stage:
(1) paraffin or foam is utilized to be bonded to the model of cylinder and upper bearing (metal);
(2) to the model surface dip-coating refractory paint of the cylinder in step (1) and upper bearing (metal), and dry;
(3) model of the cylinder after oven dry and upper bearing (metal) is carried out burying sand molding respectively in sandbox;
(4) sandbox after burying sand molding is the liquid metal pouring into fusing under negative pressure state, extracts out simultaneously by liquid metal casting displacement to make model gasify;
(5) the described sandbox after casting displacement is carried out cooling, knockout, to obtain cylinder and upper bearing (metal) blank.
Cylinder and upper bearing (metal) blank only need carry out the simple procedures process such as flat surface grinding, vane slot, internal grinding, can obtain cylinder and upper bearing (metal) finished product.Molded various slot and position, hole on the cylinder obtained and upper bearing (metal) product, as shown in Figure 2,3, be provided with the tapped hole connecting upper bearing (metal) and lower bearing, mounting-positioning holes, hold the vane slot of slide plate, suction port, spring eye.
Cylinder and the upper bearing (metal) of the present embodiment casting are gray cast iron, and its hardness is 85 ~ 100HRB, tensile strength >=200MPa, and metallographic structure is pearlite+be uniformly distributed flake graphite.Various performance parameter all meets cylinder, upper bearing (metal) usage requirement.
Embodiment 2
Prepare rotary compressor automatic modeling crankshaft casting, comprise following production stage:
(1) paraffin or foam is utilized to be bonded to the model of bent axle;
(2) to the model surface dip-coating refractory paint of the bent axle in step (1), and dry;
(3) model of the bent axle after oven dry is carried out burying sand molding respectively in sandbox;
(4) sandbox after burying sand molding is the liquid metal pouring into fusing under negative pressure state, extracts out simultaneously by liquid metal casting displacement to make model gasify;
(5) the described sandbox after casting displacement is carried out cooling, knockout, to obtain crank shaft blank part.
Molded eccentric part and oil outlet on crank shaft blank part, crank shaft blank part only need grind the simple procedures process such as major-minor axle, push stopping part, can obtain bent axle finished product.
The bent axle of the present embodiment casting is spheroidal graphite cast iron, and its hardness is 80 ~ 120HRB, tensile strength >=400MPa, and metallographic structure is pearlite+be uniformly distributed spheroidal graphite.Various performance parameter all meets cylinder usage requirement.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term need not for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. a rotary compressor, described compressor has pump assembly, described pump assembly comprises upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, it is characterized in that, at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle is prepared by lost foam casting.
2. rotary compressor according to claim 1, is characterized in that, at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle is separately made up of at least one of cast iron and cast steel.
3. rotary compressor according to claim 2, is characterized in that, described cast iron is gray cast iron or spheroidal graphite cast iron.
4. rotary compressor according to claim 3, is characterized in that, described cast iron is Ni-Cr-Mo gray cast iron.
5. rotary compressor according to claim 1, is characterized in that, the hardness of at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle is 80 ~ 120HRB, and tensile strength is greater than 200MPa.
6. rotary compressor according to claim 3, it is characterized in that, the metallographic structure of at least one in described upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle comprises pearlite and equally distributed spheroidal graphite or pearlite and equally distributed flake graphite.
7. prepare a method for the pump assembly of the rotary compressor described in any one of claim 1-6, described pump assembly comprises upper bearing (metal), lower bearing, cylinder, piston, slide plate and bent axle, it is characterized in that, comprising:
(1) paraffin or foam is utilized to prepare the model of at least one in described bearing, lower bearing, cylinder, piston, slide plate and bent axle;
(2) to described model surface dip-coating refractory paint and drying;
(3) dried model is carried out in sandbox bury sand molding;
(4) described bury sand molding after sandbox be negative pressure state under pour into the liquid metal of fusing, extract out simultaneously by described liquid metal casting displacement to make model gasify;
(5) the described sandbox after casting displacement is carried out cooling, knockout, to obtain at least one in described bearing, lower bearing, cylinder, piston, slide plate and bent axle.
8. method according to claim 7, is characterized in that, at least one in described bearing, lower bearing, cylinder, piston, slide plate and bent axle, described metal is separately at least one of cast iron and cast steel.
9. method according to claim 8, is characterized in that, described cast iron is gray cast iron or spheroidal graphite cast iron.
10. method according to claim 9, is characterized in that, described cast iron is Ni-Cr-Mo gray cast iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727878.5A CN104564676A (en) | 2014-12-03 | 2014-12-03 | Rotary compressor and method for making pump body component of rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410727878.5A CN104564676A (en) | 2014-12-03 | 2014-12-03 | Rotary compressor and method for making pump body component of rotary compressor |
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| Publication Number | Publication Date |
|---|---|
| CN104564676A true CN104564676A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410727878.5A Pending CN104564676A (en) | 2014-12-03 | 2014-12-03 | Rotary compressor and method for making pump body component of rotary compressor |
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| CN (1) | CN104564676A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220099091A1 (en) * | 2020-09-30 | 2022-03-31 | Trane International Inc. | Compressor including laser-hardened bearing surfaces |
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| CN1413783A (en) * | 2001-10-22 | 2003-04-30 | 北京仁创科技有限公司 | Invensment centrifugal casting technology |
| JP2004283912A (en) * | 2003-03-05 | 2004-10-14 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacturing method of mold |
| CN101809287A (en) * | 2007-10-02 | 2010-08-18 | 艾默生环境优化技术有限公司 | compressor having improved valve plate |
| CN103924149A (en) * | 2014-04-29 | 2014-07-16 | 长沙金龙铸造实业有限公司 | Nodular cast iron crank axle of compressor and manufacture method thereof |
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2014
- 2014-12-03 CN CN201410727878.5A patent/CN104564676A/en active Pending
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| CN1413783A (en) * | 2001-10-22 | 2003-04-30 | 北京仁创科技有限公司 | Invensment centrifugal casting technology |
| JP2004283912A (en) * | 2003-03-05 | 2004-10-14 | Ishikawajima Harima Heavy Ind Co Ltd | Manufacturing method of mold |
| CN101809287A (en) * | 2007-10-02 | 2010-08-18 | 艾默生环境优化技术有限公司 | compressor having improved valve plate |
| CN103924149A (en) * | 2014-04-29 | 2014-07-16 | 长沙金龙铸造实业有限公司 | Nodular cast iron crank axle of compressor and manufacture method thereof |
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| Title |
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| 严绍华: "《工程材料及机械制造基础 2 热加工工艺基础》", 31 May 2010, 高等教育出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220099091A1 (en) * | 2020-09-30 | 2022-03-31 | Trane International Inc. | Compressor including laser-hardened bearing surfaces |
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Application publication date: 20150429 |