CN101284301A - Precise manufacture steps of spiral rotor of compressor - Google Patents
Precise manufacture steps of spiral rotor of compressor Download PDFInfo
- Publication number
- CN101284301A CN101284301A CNA2007101018021A CN200710101802A CN101284301A CN 101284301 A CN101284301 A CN 101284301A CN A2007101018021 A CNA2007101018021 A CN A2007101018021A CN 200710101802 A CN200710101802 A CN 200710101802A CN 101284301 A CN101284301 A CN 101284301A
- Authority
- CN
- China
- Prior art keywords
- low temperature
- hot melt
- temperature hot
- mould
- melt material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses steps for precisely manufacturing a compressor screw rotor. The steps include selecting a mould, injecting low temperature hot melt materials, drying the low temperature hot melt material mould, taking out the low temperature hot melt material mould, coating with slurry and sand spraying, drying the sand mould, heating for allowing the low temperature hot melt materials to demould, casting and forming, destroying the sand mould, cutting and processing to obtain the finished product. The mould comprises two split half moulds which can be opened to facilitate the taking of the low temperature hot melt material mould after the low temperature hot melt materials are injected in the mould so that no excessive processing stocks are required to be reserved. Furthermore, the low temperature hot melt material mould is subjected to surface sand spraying to form the sand mould, the low temperature hot melt material is demoulded after being heated, and the screw rotor cast is cast and shaped in the mould cavity of the sand mould, so that precision size and fine surface roughness can be acquired, thereby greatly reducing the time and procedure for cutting and processing so as to lower the manufacture cost.
Description
Technical field
The present invention refers to a kind of manufacture method of helical rotor of compressor especially about the metal casting forming technique.
Background technology
The mode that tradition is made helical rotor is to get as shown in Figure 6 a mould, and this mould comprises an internal mold 40, an external mold 50, and these internal mold 40 inside are formed with rotor semi-finished product forming tank 41.This external mold 50 is involuted by upper and lower half module, its be provided with can ccontaining internal mold 40 interior die cavity 51, and form a helical rotor axle center die cavity 52 respectively in interior die cavity 51 two ends, this helical rotor axle center die cavity 52 and coaxial involutory with rotor semi-finished product forming tank 41 is provided with a sprue 53 that communicates with helical rotor axle center die cavity 52 in external mold 50 in addition.
Its method for making is that the casting material of fusion is injected by sprue 53, be filled in external mold 50 helical rotor axle center die cavity 52, and the rotor semi-finished product forming tank 41 of internal mold 40 in, to be cooled solidifying is the helical rotor semi-finished product, open external mold 50, this internal mold 40 is taken out together with the helical rotor semi-finished product, then these helical rotor semi-finished product are screwed out in internal mold 40, advance the machining step again.
But, above-mentioned rotor semi-finished product forming tank 41 is to utilize the helical rotor finished product directly to be made into mould, because when the helical rotor finished product screws out rotor semi-finished product forming tank 41, can destroy the die cavity surface, so the helical rotor semi-finished product must be manufactured large-size, must size so that the helical rotor semi-finished product can be machined to institute in the future.In addition, when the helical rotor semi-finished product took out, its surface was very coarse, so need reserve a lot of clout during manufacturing rotor semi-finished product forming tank 41, with when carrying out machining, was able to semi-finished product are carried out mirror finish to required size.Need more casting material and moulding to increase between man-hour later on foot and unnecessary waste material thus, cause expensive, as to reduce competitiveness defective.
Summary of the invention
The present invention designs for the defective that manufacture method caused that solves existing helical rotor, in the hope of reaching hot investment casting, reduce waste material, cutting down finished cost and the purpose of material cost.
In order to solve the existing defective of prior art, the step of manufacturing spiral rotor of compressor provided by the present invention comprises:
Get a molding tool: this mould comprises two involutory half modules, is provided with the moulding die cavity and the sprue of a helical rotor in mould;
Perfusion low temperature hot melt material: pour into the liquid low temperature hot melt material of fusion in sprue, liquid low temperature hot melt material is filled in two involutory helical rotor axle die cavitys, and two rotor helical-screw portion half module caves;
Dry: as liquid low temperature hot melt material drying to be solidified, form a low temperature hot melt material mould with helical rotor external form;
Take out low temperature hot melt material mould;
Be stained with slurry and sandblast: be stained with glutinous slurry in low temperature hot melt material mould surface, and, make sand spray the attached low temperature hot melt material mould surface that is adhered to equably, repeat this step, make surface sand-blasting form predetermined thickness in its surface sand-blasting;
Dry: as to treat that glutinous slurry is dry, promptly get a sand mo(u)ld that is coated on low temperature hot melt material mould surface;
Heating is deviate from low temperature hot melt material: to the heating of low temperature hot melt material mould, make it be melt into liquid low temperature hot melt material, flow out in sand mo(u)ld, promptly in the inner sand mold molding die cavity that forms of sand mo(u)ld;
Cast molding: pouring liquid casting material in the sand mold molding die cavity;
Destroy sand mo(u)ld: treat after the liquid casting material cool drying, sand mo(u)ld is destroyed, promptly get the helical rotor foundry goods;
Machining: the helical rotor foundry goods is bestowed machining, be finished product.
Implement after the above-mentioned technological means, the obtainable concrete benefit of the present invention is:
1. be involutory owing to mould used in the present invention, so after the moulding low temperature hot melt material film, can open mould, the convenient low temperature hot melt material film that takes out, to improve the defective that said spiral rotor finished product is difficult for back-out by two half modules
2. because low temperature hot melt material film of the present invention is easy to taking-up, therefore there is not the anxiety that injures low temperature hot melt material mould surface and die cavity surface, so can accurate size make moulding, do not need to reserve too much rapidoprint, not only can reduce casting material, but also can significantly lack process time of back segment, to save cost.
3. because the present invention with the die cavity of low temperature hot melt material film moulding sand mo(u)ld, therefore can get smooth die cavity surface, made helical rotor cast(ing) surface rugosity is very careful, also can reduce the time and the program of back segment reprocessing.
Description of drawings
Fig. 1 is the helical rotor three-dimensional appearance schematic diagram that institute of the present invention desire is made.
Fig. 2 is a manufacturing step flow chart of the present invention.
Fig. 3 is the floor map of leading portion manufacturing step of the present invention.
Fig. 4 is the floor map of back segment manufacturing step of the present invention.
Fig. 5 is the perspective exploded view of mould that the present invention adopts.
Fig. 6 is the plane combination generalized section of existing helical rotor mould.
[primary clustering symbol description]
(10) helical rotor (100) low temperature hot melt material mould
(105) sand mold molding die cavity
(107) helical rotor foundry goods
(11) spire
(12) axle portion (20) internal mold
(21) (22) half internal molds
(23) (24) rotor helical-screw portion half module cave
(30) external mold (31) (32) half external molds
(33) (34) interior die cavity
(35) (36) helical rotor axle die cavity
(37) sprue (40) internal mold
(41) rotor semi-finished product forming tank
(50) the interior die cavity of external mold (51)
(52) helical rotor axle center die cavity
(53) sprue
The specific embodiment
Be illustrated in figure 1 as the helical rotor 10 of moulding that the present invention desires, the axle portion 12 that it comprises a spire 11, is extended axially by spire 11 both ends of the surface center one.
See also Fig. 2 and cooperate shown in Figure 3ly, the step of this helical rotor 10 of hot investment casting provided by the present invention comprises:
Get a molding tool: this mould is mainly by two half module involutory compositions, be provided with the moulding die cavity of involutory helical rotor in two half modules, and one be communicated in this moulding die cavity and outside sprue, with after injecting the moulding of casting material, directly open one of them half module, can take out foundry goods, and the 3-1 of this mould preferred embodiment such as Fig. 3 and shown in Figure 5, comprise an internal mold 20, an and external mold 30, this internal mold 20 is by two and half internal molds 21,22 form, this two and half internal mold 21,22 inside are respectively equipped with a rotor helical-screw portion half module cave 23,24, this two rotor helical-screws portion half module cave 23,24 pairs fashionable, form the external form of rotor helical-screw portion, and described external mold 30 also is by two and half external molds 31,32 institutes involute, two exterior mold halves 31,32 in opposite directions this side be arranged with die cavity 33 in respectively, 34, to be installed with described internal mold 20, and die cavity 33 in this, 34 two opposite side walls are respectively equipped with a helical rotor axle die cavity 35,36, this helical rotor axle die cavity 35,36 and with the rotor helical-screw portion half module cave 23 of internal mold 20,24 concentrics, be provided with a sprue 37 in half external mold 31 wherein again, this sprue 37 is communicated in half external mold, 31 outside and helical rotor axle die cavitys 35, then shown in the 3-2 of Fig. 3, with above-mentioned two and half internal molds 21,22 involutory two and half external molds 31 that place, in 32, promptly form the rotor helical-screw portion half module cave 23 of internal mold 20,24 with the helical rotor axle die cavity 35 of external mold 30,36 shapes that communicate;
Perfusion low temperature hot melt material: shown in the 3-3 of Fig. 3, pour into the liquid low temperature hot melt material of fusion in sprue 37, (but this low temperature hot melt material can be the material of wax, gelatin or other low temperature hot melt), this liquid state low temperature hot melt material promptly can be circulated and fill helical rotor axle die cavity 35,36, be reached rotor helical-screw portion half module cave 23,24;
Dry: as after liquid low temperature hot melt material drying is solidified, to be low temperature hot melt material mould with helical rotor external form;
Take out low temperature hot melt material mould: open internal mold 20 and external mold 30, the low temperature hot melt material mould 100 shown in the 3-4 of taking-up Fig. 3;
Be stained with slurry and sandblast: please cooperate shown in the 4-1 of Fig. 4, be stained with glutinous slurry in low temperature hot melt material mould 100 surfaces, bestow sandblast in the middle of being placed on a rotating mechanism, it can make 100 rotations of low temperature hot melt material mould, perhaps make the nozzle rotation of sandblast, make sand spray attached low temperature hot melt material mould 100 surfaces that are adhered to equably, this is stained with slurry and the size of the visual low temperature hot melt of sandblast step material mould 100 and repeats, with at the thick sand mo(u)ld of low temperature hot melt material mould 100 surperficial shape one decks;
Dry: as to make glutinous slurry dry, promptly get a sand mo(u)ld that is coated on low temperature hot melt material mould 100 surfaces;
Heating is deviate from low temperature hot melt material: to 100 heating of low temperature hot melt material mould, make it be melt into liquid low temperature hot melt material, flow out in sand mo(u)ld, promptly as the inner sand mold molding die cavity 105 that forms of the sand mo(u)ld that 4-2 is shown in of Fig. 4;
Cast molding: shown in the 4-3 of Fig. 4, pouring liquid casting material in sand mold molding die cavity 105;
Destroy sand mo(u)ld: treat after the liquid casting material cool drying, sand mo(u)ld is destroyed, promptly get the helical rotor foundry goods 107 that comprises spire and axle portion shown in the 4-4 of Fig. 4;
Machining: helical rotor foundry goods 107 is bestowed the machining of back segment, with accurate dimensions, be helical rotor shown in Figure 1 10 finished products.
By the helical rotor casting dimension of above-mentioned steps step gained superprecision, and because sand mo(u)ld is to be coated on low temperature hot melt material mould surface forming, and low temperature hot melt timber die has the surface of dead smooth, therefore be formed at also superfine the causing in surface of the sand mold molding die cavity of sand mo(u)ld inside, gained helical rotor cast(ing) surface rugosity is very good, so back segment procedure and process time are less, can significantly reduce manufacturing cost.
Claims (4)
1. precise manufacture steps of spiral rotor of compressor comprises:
Get a molding tool: this mould comprises two involutory half modules, is provided with the moulding die cavity and the sprue of a helical rotor in mould;
Perfusion low temperature hot melt material: pour into the liquid low temperature hot melt material of fusion in sprue, liquid low temperature hot melt material promptly is filled in two involutory helical rotor axle die cavitys, and two rotor helical-screw portion half module caves;
Dry: liquid low temperature hot melt material drying is solidified, and forms a low temperature hot melt material mould with helical rotor external form;
Take out low temperature hot melt material mould;
Be stained with slurry and sandblast: be stained with glutinous slurry in low temperature hot melt material mould surface, and, make sand spray the attached low temperature hot melt material mould surface that is adhered to equably in its surface sand-blasting;
Dry: as to treat that glutinous slurry is dry, promptly get a sand mo(u)ld that is coated on low temperature hot melt material mould surface;
Heating is deviate from low temperature hot melt material: to the heating of low temperature hot melt material mould, make it be melt into liquid low temperature hot melt material, flow out in sand mo(u)ld, promptly in the inner sand mold molding die cavity that forms of sand mo(u)ld;
Cast molding: pouring liquid casting material in the sand mold molding die cavity;
Destroy sand mo(u)ld: treat after the liquid casting material cool drying, sand mo(u)ld is destroyed, promptly get the helical rotor foundry goods;
Machining: the helical rotor foundry goods is bestowed machining, be finished product.
2. precise manufacture steps of spiral rotor of compressor as claimed in claim 1, it is characterized in that, this mould comprises an internal mold, an and external mold, this internal mold is made up of two and half internal molds, this two and half internal molds inside is respectively equipped with a rotor helical-screw portion half module cave, described external mold is involuted by two and half external molds, two exterior mold halves this side in opposite directions is arranged with an interior die cavity that can be installed with internal mold respectively, and the die cavity two opposite side walls is respectively equipped with a helical rotor axle die cavity in this, this helical rotor axle die cavity is coaxial involutory with the rotor helical-screw portion half module cave of internal mold, on described in addition sprue half external mold located therein.
3. precise manufacture steps of spiral rotor of compressor as claimed in claim 1 or 2 is characterized in that, described low temperature hot melt material is a wax.
4. precise manufacture steps of spiral rotor of compressor as claimed in claim 1 or 2 is characterized in that, described low temperature hot melt material is a gelatin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101018021A CN101284301A (en) | 2007-04-13 | 2007-04-13 | Precise manufacture steps of spiral rotor of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101018021A CN101284301A (en) | 2007-04-13 | 2007-04-13 | Precise manufacture steps of spiral rotor of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101284301A true CN101284301A (en) | 2008-10-15 |
Family
ID=40056839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101018021A Pending CN101284301A (en) | 2007-04-13 | 2007-04-13 | Precise manufacture steps of spiral rotor of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101284301A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163892A (en) * | 2010-02-12 | 2011-08-24 | 通用汽车环球科技运作有限责任公司 | Investment casting of induction motor rotors |
| CN102615473A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method of vacuum machine screw rotor |
| CN102615474A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method for compressor screw rotor |
| CN104550762A (en) * | 2014-12-23 | 2015-04-29 | 杭州德曼汽车零部件有限公司 | Casting mold for female and male rotors and pouring system of casting mold |
| CN105728658A (en) * | 2014-12-11 | 2016-07-06 | 复盛股份有限公司 | Method for making spiral casting, casting mold structure and model of casting mold structure |
-
2007
- 2007-04-13 CN CNA2007101018021A patent/CN101284301A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163892A (en) * | 2010-02-12 | 2011-08-24 | 通用汽车环球科技运作有限责任公司 | Investment casting of induction motor rotors |
| CN102163892B (en) * | 2010-02-12 | 2013-11-20 | 通用汽车环球科技运作有限责任公司 | Investment casting of induction motor rotors |
| CN102615473A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method of vacuum machine screw rotor |
| CN102615474A (en) * | 2011-02-01 | 2012-08-01 | 汉钟精机股份有限公司 | Manufacturing method for compressor screw rotor |
| CN102615474B (en) * | 2011-02-01 | 2014-08-06 | 汉钟精机股份有限公司 | Manufacturing method for compressor screw rotor |
| CN102615473B (en) * | 2011-02-01 | 2014-08-27 | 汉钟精机股份有限公司 | Manufacturing method of vacuum machine screw rotor |
| CN105728658A (en) * | 2014-12-11 | 2016-07-06 | 复盛股份有限公司 | Method for making spiral casting, casting mold structure and model of casting mold structure |
| CN104550762A (en) * | 2014-12-23 | 2015-04-29 | 杭州德曼汽车零部件有限公司 | Casting mold for female and male rotors and pouring system of casting mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105665637B (en) | A kind of containerless casting manufacturing process of frost sand mold | |
| US6286581B1 (en) | Method for machining sand block into sand molding elements including sand molds and sand cores for metal casting foundry operations | |
| CN109175307B (en) | 3D printing sand mold antigravity casting forming method | |
| CN208513592U (en) | For manufacturing the component of component end item | |
| CN101780525B (en) | Process for casting oil distribution disc of vane pump | |
| CN105127370B (en) | The cooling system forming method of rapidly heating moulds | |
| WO2011017864A1 (en) | Adaptive production method for mould | |
| CN101284301A (en) | Precise manufacture steps of spiral rotor of compressor | |
| CN107096882B (en) | Casting mold based on 3D printing and preparation method of casting mold | |
| CN109158542A (en) | Ceramic mold casting PS unitary mould and its quick cast method based on selective laser sintering | |
| US20110042858A1 (en) | Method of making molds with production ready surfaces | |
| CN112658210A (en) | Sectional casting method for subway bogie special-shaped steel casting | |
| CN205236971U (en) | Gear box box casting mould | |
| CN104741884A (en) | Die internally provided with free-shaped water way and manufacturing method of die | |
| CN107073563A (en) | Cast the method for core, the application for casting core and manufacture casting core | |
| CN104043773A (en) | Preparation of easily-demoulded ceramic-mould, application method and cast copper-alloy casting | |
| JP2000301289A (en) | Production of lost form pattern | |
| CN2435170Y (en) | Runner moulded inner tube for lost pattern casting | |
| CN108672658B (en) | Precise casting process method for marine propulsion power water inlet end part | |
| CN209077713U (en) | A kind of ceramic mold casting PS unitary mould based on selective laser sintering | |
| CN206343594U (en) | A kind of compound core of circular cooler trolley casting | |
| CN109047665A (en) | A kind of novel non-transmision end end cap Sand-Faced Metal Mould Casting technique | |
| JP3556091B2 (en) | Mold manufacturing method | |
| CN218283645U (en) | Frock is assembled in general casting rising head molding | |
| CN214442831U (en) | Mould-free casting mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081015 |