CN104985405A - Screw shaft machining method adopting simultaneous quenching and sintering - Google Patents
Screw shaft machining method adopting simultaneous quenching and sintering Download PDFInfo
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- CN104985405A CN104985405A CN201510463574.7A CN201510463574A CN104985405A CN 104985405 A CN104985405 A CN 104985405A CN 201510463574 A CN201510463574 A CN 201510463574A CN 104985405 A CN104985405 A CN 104985405A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention relates to a screw shaft machining method adopting simultaneous quenching and sintering. According to the screw shaft machining method, a plurality of thin sheet components with teeth sleeve a shaft, and the thin sheet components and the shaft are superposed together, so that the screw shaft can be formed, and when being quenched, the whole screw shaft is sintered. With the screw shaft machining method adopted, problems of complicated techniques, long processing time, high machining difficulty and high machining cost in screw shaft machining in the prior art can be solved. The screw shaft includes the thin sheet components and the shaft; the exteriors of the thin sheet components are provided with tooth bottom engaging portions and tooth top engaging portions; shaft holes are formed in the thin sheet components; at least one tooth-shaped protrusion is arranged in each shaft hole; at least one spiral groove is formed at the exterior of the shaft; the number of the tooth-shaped protrusions in the shaft holes of the thin sheet components is identical to the number of the spiral grooves at the exterior of the shaft; the tooth-shaped protrusions in the shaft holes are matched with the spiral grooves; the shaft is compactly and orderly sleeved with the plurality of thin sheet components; the relative positions of the shaft and the plurality of thin sheet components are fixed; and gasp between the shaft and the plurality of thin sheet components are filled with metal. With the screw shaft machining method adopted, a high-physical performance screw shaft can be manufactured fast with low cost.
Description
Technical field
The present invention relates to the processing method that the screw shaft sintered is carried out in a kind of quenching simultaneously, particularly relate to a kind of be inserted in axle by the toothed sheet parts of multi-disc after the screw shaft that is formed by stacking, carry out the screw shaft processing method sintered while overall screw shaft quenching.
Background technology
Helical-lobe compressor, also screw compressor is claimed, comprise screw air compressor and screw rod technique compressor (vinyl chloride compressor etc.), helical-lobe compressor is divided into single screw compressor and double-screw compressor, and helical-lobe compressor utilizes screw shaft shape rotor to compress and pumped (conveying) medium do gyration in cylinder body.
It is high that helical-lobe compressor has reliability, and parts are few, do not have consumable accessory, and thus its running is reliable, and the life-span is long, and general screw machine host header reaches 30 years projected life; Convenient operating maintenance, automaticity is high, and operating personnel, without the need to through long-time professional training, realize unmanned running; Dynamic equilibrium is good, does not have unbalance inertia force, and machine can high speed operation reposefully, realizes foundation-free running; Strong adaptability, has the advantages that to force gas transmission, and volume flow is hardly by the impact of pressure at expulsion, higher efficiency can be kept in the condition range of broadness, when compressor arrangement without any changes, be applicable to various working, thus be easy to sizing batch production; Multi-phase mixed delivering, in fact leaves gap between the rotor flank of tooth, thus ability hydraulic shock, can force feed containing the gas of liquid, containing dusty gas, easy polymerizable gas etc.; Guiding valve Flow-rate adjustment, do not need to return stream, can effectively reduce the advantages such as energy consumption, therefore, helical-lobe compressor is widely used.
The subject matter that current containment helical-lobe compressor develops is that the cost of helical-lobe compressor is high, the flank of tooth due to the screw shaft rotor of screw machine is a space curved surface, the outer contour in its cross section is formed by connecting by the curve of multiple complexity, the curved surface of the flank of tooth of overall screw shaft rotor is formed through spiral stretch by the outline of above-mentioned complex curve, the flank of tooth of screw shaft rotor is the curved surface of a complicated stereoscopic three-dimensional, therefore, turning common in machining and milling device not competent, numerical control turning general at present and milling device can not be processed, need to utilize special cutter to process on expensive special equipment in machining.
The processing of screw shaft rotor, divides from product material, is generally divided into foundry goods machining and forged steel pieces machining.
The screw shaft rotor that foundry goods machining is shaped, necessary first cast form, then with machining center and dedicated tool machining, the screw shaft rotor that the quality such as rigid, wearability of product is cut relative to forged steel pieces is weaker.
During the screw shaft rotor machining that forged steel pieces cuts, must first by steel formed by forging, then with machining center and dedicated tool repeatedly machining, Quenching Treatment and Surface Finishing is carried out again after shaping, therefore, technological requirement is high, technological process is complicated, process velocity is slow, production cost is high.
In actual production, production enterprise often adopts import machining center and import cutter to complete processing, and enterprise is when purchasing high-end import machining center, and be subject to the technology restriction of developed country, meanwhile, import equipment and import cutter substantially increase production cost.
Summary of the invention
The technical problem that the present invention solves is: complex process during in order to solve prior art processing screw shaft, long processing time, difficulty of processing are large, processing cost high-technology defect, a kind of processing method of screw shaft is provided, particularly relate to a kind of be inserted in axle by the toothed sheet parts of multi-disc after the screw shaft that is formed by stacking, carry out the screw shaft processing method sintered while overall screw shaft quenching, reach low cost, manufacture the technical purpose of high physical property screw shaft fast.
The technical scheme of technical solution problem of the present invention is:
In order to achieve the above object, the screw shaft processing method sintered is carried out in a kind of quenching provided by the invention simultaneously, described screw shaft comprises sheet parts, axle, there are engaging piece at the bottom of tooth and tooth top engaging piece in the outside of sheet parts, axis hole is had in sheet parts, a profile of tooth is had at least to protrude in axis hole, the outside of axle has a spiral groove at least, the quantity that profile of tooth in sheet parts axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle, and cooperatively interact, the cover that the outside of axle is closely orderly has multi-disc sheet parts, relative position between axle and multi-disc sheet parts is fixed, metal is filled with in gap mutual between axle and multi-disc sheet parts, concrete procedure of processing is as follows:
Step 1): sheet metal is machined into sheet parts;
Step 2): the outside then multi-disc sheet parts being enclosed within axle, the tooth in sheet parts axis hole is convex to cooperatively interact with the groove of the external helicoid shape of axle, forms the appearance of spiral oblique crank Z;
Step 3): the relative position then the multi-disc sheet parts of the spiral oblique crank Z after above-mentioned moulding and axle being carried out profile is fixed, and forms screw rod axis body after fixing;
Step 4): the inspection of semifinished product is carried out to described screw rod axis body, the qualified screw rod axis body reaching drawing configuration design requirement enters next step, defective screw rod axis body, again checks after entering the mould squeezing shaping of screw shaft shape, enters next step after qualified;
Step 5): then by the surperficial prefluxing of above-mentioned screw rod axis body;
Step 6): then at the outer matel coated powder of scaling powder, metal powder is filled between each sheet parts;
Step 7): then quenched by the screw rod axis body scribbling metal powder, while quenching, screw shaft surface is sintered into one, and forms the screw shaft of the sintering of quenching;
Step 8): then the screw shaft of above-mentioned thermal sintering is carried out product inspection, qualified finished product screw shaft warehouse-in, defective screw shaft is checked after carrying out the outer contour surface process of screw shaft again, the finished product screw shaft warehouse-in after qualified.
The screw shaft processing method sintered is carried out in the quenching be more preferably simultaneously, adopts wherein a kind of method of punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, sheet metal is processed into sheet parts.
The screw shaft processing method sintered is carried out in the quenching be more preferably simultaneously, and the metal powder that scaling powder is coated with outward is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder.
The screw shaft processing method sintered is carried out in the quenching be more preferably simultaneously, completes the quenching of screw rod axis body in vacuum tank.
The screw shaft processing method sintered is carried out in the quenching be more preferably simultaneously, wherein a kind of method that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace to quench.
The screw shaft processing method sintered is carried out in a kind of quenching be more preferably simultaneously, when quenching in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, by the time, in vacuum tank when pressure and normal-pressure balance, close intake valve and reopen vavuum pump and carry out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket once.
The screw shaft processing method sintered is carried out in the quenching be more preferably simultaneously, and have a profile of tooth to protrude in the axis hole of described sheet parts, the groove of axial screw shape is the groove of a spiral profile of tooth.
The screw shaft processing method sintered is carried out in the quenching be more preferably simultaneously, has multiple profile of tooth to protrude in described sheet parts in axis hole, and the groove of axial screw shape is the groove of spiral multiple profile of tooth.
The screw shaft processing method sintered is carried out in a kind of quenching be more preferably simultaneously, the method that the described relative position multi-disc sheet parts of the spiral oblique crank Z after moulding and axle being carried out profile is fixed is: with axial force clamping sheet parts on axle, and fixing relative position.
The screw shaft processing method sintered is carried out in a kind of quenching be more preferably simultaneously, the method that the described relative position multi-disc sheet parts of the spiral oblique crank Z after moulding and axle being carried out profile is fixed is: adopt auxiliary clamp, axial grip sheet parts while clamp shaft, and fixing relative position.
Compare with current screw shaft process technology, the Advantageous Effects that the present invention obtains is: quenching sinters simultaneously, saves technological process, simplified processing process, shorten process time, the metal powder that scaling powder is coated with outward is lead powder, glass putty, copper powder, copper alloy powder, be all flexible metallic material after terne metal powder solidifies, after stressed extruding, flexible metal can be extruded from the flank of tooth or remove, and does not affect tooth face hardness and flank of tooth physical parameter, reduces difficulty of processing, reaches low cost, the technical purpose of the high physical property screw shaft of quick manufacture, solve prior art processing screw shaft time complex process, long processing time, difficulty of processing is large, processing cost high-technology defect, vacuum state can discharge the gas in the metallic solution after metal powder thawing, when carrying out quenching technical in vacuum tank, rapid pressure and fast decompression process hocket, and make granulated metal in screw rod axis body, produce motion after liquefaction, accelerate air in screw rod axis body and discharge, make in screw rod axis body finer and close, improve screw rod axis body mechanical performance, and produce the more outstanding above-mentioned technological deficiency of large-scale screw shaft, simplified processing process of the present invention, shorten process time, reduce difficulty of processing, reach low cost, the technical purpose of the high physical property screw shaft of quick manufacture, solve prior art processing screw shaft time complex process, long processing time, difficulty of processing is large, processing cost high-technology defect, and produce the more outstanding above-mentioned technological deficiency of large-scale screw shaft, practicality is large.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1: be process chart of the present invention.
Fig. 2: be that the left-handed positive screw shaft of the present invention coordinates schematic diagram with dextrorotation female screw axle.
Fig. 3: be that dextrorotation of the present invention sun screw shaft coordinates schematic diagram with left-handed female screw axle.
Fig. 4: be the left-handed positive screw shaft schematic diagram of the present invention.
Fig. 5: be dextrorotation female screw axle schematic diagram of the present invention.
Fig. 6: be dextrorotation of the present invention sun screw shaft schematic diagram.
Fig. 7: be the present invention's left-handed female screw axle schematic diagram.
Fig. 8: the sheet parts schematic diagram being the female screw having a profile of tooth to protrude in axis hole of the present invention.
Fig. 9: the sheet parts schematic diagram being the positive screw rod having a profile of tooth to protrude in axis hole of the present invention.
Figure 10: the sheet parts schematic diagram being the female screw having multiple profile of tooth to protrude in axis hole of the present invention.
Figure 11: the sheet parts schematic diagram being the positive screw rod having multiple profile of tooth to protrude in axis hole of the present invention.
Figure 12: be the schematic diagram that the present invention has the axle of many right hand helix shape profile of tooth grooves.
Figure 13: be the schematic diagram that the present invention has the axle of many left-turn spiral shape profile of tooth grooves.
Figure 14: be the schematic diagram that the present invention has the axle of a right hand helix shape profile of tooth groove.
Figure 15: be the schematic diagram that the present invention has the axle of a left-turn spiral shape profile of tooth groove.
In figure: 1. sheet parts, 2. axle, 3. right-hand screw keyway, 4. left-hand screw keyway, 5. right-hand screw spline, 6. left-hand screw spline, 7. engaging piece at the bottom of tooth, 8. tooth top engaging piece, 9. flat key shape tooth projecting apertures, 10. spline shape tooth projecting apertures, 11. left-handed positive screw rods, 12. dextrorotation female screws, 13. dextrorotation sun screw rods, 14. left-handed female screws.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be further described, but protection domain of the presently claimed invention is not limited to the scope described by specific embodiment.
Example 1: as shown in Fig. 1 to Figure 15, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, described screw shaft comprises sheet parts 1, axle 2, there are engaging piece 7 at the bottom of tooth and tooth top engaging piece 8 in the outside of sheet parts 1, axis hole is had in sheet parts 1, a profile of tooth is had at least to protrude in axis hole, the outside of axle 2 has a spiral groove at least, the quantity that profile of tooth in sheet parts 1 axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle 2, and cooperatively interact, the cover that the outside of axle 2 is closely orderly has multi-disc sheet parts 1, relative position between axle 2 and multi-disc sheet parts 1 is fixed, metal is filled with in gap mutual between axle 2 and multi-disc sheet parts 1,
Concrete procedure of processing is as follows:
Step 1): sheet metal is machined into sheet parts 1;
Step 2): the outside then multi-disc sheet parts 1 being enclosed within axle 2, the tooth in sheet parts 1 axis hole is convex to cooperatively interact with the groove of the external helicoid shape of axle 2, forms the appearance of spiral oblique crank Z;
Step 3): then the relative position that the multi-disc sheet parts 1 of the spiral oblique crank Z after above-mentioned moulding and axle 2 carry out profile is fixed, after fixing, form screw rod axis body;
Step 4): the inspection of semifinished product is carried out to described screw rod axis body, the qualified screw rod axis body reaching drawing configuration design requirement enters next step, defective screw rod axis body, again checks after entering the mould squeezing shaping of screw shaft shape, enters next step after qualified;
Step 5): then by the surperficial prefluxing of above-mentioned screw rod axis body;
Step 6): then at the outer matel coated powder of scaling powder, metal powder is filled between each sheet parts 1;
Step 7): then quenched by the screw rod axis body scribbling metal powder, while quenching, screw shaft surface is sintered into one, and forms the screw shaft of the sintering of quenching;
Step 8): then the screw shaft of above-mentioned thermal sintering is carried out product inspection, qualified finished product screw shaft warehouse-in, defective screw shaft is checked after carrying out the outer contour surface process of screw shaft again, the finished product screw shaft warehouse-in after qualified.
Example 2: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, adopt wherein a kind of method of punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, sheet metal is processed into sheet parts 1.
Example 3: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, and the metal powder that scaling powder is coated with outward is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder.
Example 4: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, completes the quenching of screw rod axis body in vacuum tank.
Example 5: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, wherein a kind of method that quenching adopts high-frequency quenching, mid frequency induction hardening or heat-treatment furnace to quench.
Example 6: as shown in Fig. 1 to Figure 15 and example 4, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, when quenching in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, when waiting until pressure and normal-pressure balance in vacuum tank, cut out intake valve reopens vavuum pump and carries out negative-pressure ward, and above-mentioned rapid pressure and fast decompression process hocket once.
Example 7: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, and have a profile of tooth to protrude in the axis hole of described sheet parts 1, the spiral groove of axle 2 is grooves of a spiral profile of tooth;
Described sheet parts 1 is the sheet parts 1 of the female screw having a profile of tooth to protrude in the axis hole shown in Fig. 8, and axle 2 is the axles 2 having a right hand helix shape profile of tooth groove shown in Figure 14, after processing, form the dextrorotation female screw shown in Fig. 5;
Described sheet parts 1 is the sheet parts 1 of the female screw having a profile of tooth to protrude in the axis hole shown in Fig. 8, and axle 2 is the axles 2 having a left-turn spiral shape profile of tooth groove shown in Figure 15, after processing, form the left-handed female screw shown in Fig. 7;
Described sheet parts 1 is the sheet parts 1 of the positive screw rod having a profile of tooth to protrude in the axis hole shown in Fig. 9, and axle 2 is the axles 2 having a right hand helix shape profile of tooth groove shown in Figure 14, forms the dextrorotation sun screw rod shown in Fig. 6 after processing;
Described sheet parts 1 is the sheet parts 1 of the female screw having a profile of tooth to protrude in the axis hole shown in Fig. 9, and axle 2 is the axles 2 having a left-turn spiral shape profile of tooth groove shown in Figure 15, after processing, form the left-handed positive screw rod shown in Fig. 4.
Example 8: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, has multiple profile of tooth to protrude in described sheet parts 1 in axis hole, and the spiral groove of axle 2 is grooves of spiral multiple profile of tooth;
Described sheet parts 1 is the sheet parts 1 of the female screw having multiple profile of tooth to protrude in the axis hole shown in Figure 10, and axle 2 is the axles 2 having many right hand helix shape profile of tooth grooves shown in Figure 12, after processing, form the dextrorotation female screw shown in Fig. 5;
Described sheet parts 1 is the sheet parts 1 of the female screw having multiple profile of tooth to protrude in the axis hole shown in Figure 10, and axle 2 is the axles 2 having many left-turn spiral shape profile of tooth grooves shown in Figure 13, after processing, form the left-handed female screw shown in Fig. 7;
Described sheet parts 1 is the sheet parts 1 of the positive screw rod having multiple profile of tooth to protrude in the axis hole shown in Figure 11, and axle 2 is the axles 2 having many right hand helix shape profile of tooth grooves shown in Figure 12, forms the dextrorotation sun screw rod shown in Fig. 6 after processing;
Described sheet parts 1 is the sheet parts 1 of the female screw having multiple profile of tooth to protrude in the axis hole shown in Figure 11, and axle 2 is the axles 2 having many left-turn spiral shape profile of tooth grooves shown in Figure 13, after processing, form the left-handed positive screw rod shown in Fig. 4.
Example 9: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, the method that the described relative position multi-disc sheet parts 1 of the spiral oblique crank Z after moulding and axle 2 being carried out profile is fixed is: with axial force clamping sheet parts 1 on axle, and fixing relative position, all there is screw thread at the two ends of described spiral groove; Described screw thread is all provided with nut, nut by axle 2 and relative position between multi-disc sheet parts 1 fix.
Example 10: as shown in Fig. 1 to Figure 15 and example 1, the screw shaft processing method sintered is carried out in disclosed a kind of quenching simultaneously, the method that the described relative position multi-disc sheet parts 1 of the spiral oblique crank Z after moulding and axle 2 being carried out profile is fixed is: adopt auxiliary clamp, axial grip sheet parts 1 while clamp shaft, and fixing relative position.
Example 11: as shown in Fig. 1 to Figure 15 and example 1-10, disclosed a kind of compressor sintering screw rod, comprise cylinder, screw shaft is had in cylinder, described screw shaft is the screw shaft that a kind of quenching is carried out sintering simultaneously, screw shaft also comprises sheet parts 1, axle 2, there are engaging piece 7 at the bottom of tooth and tooth top engaging piece 8 in the outside of sheet parts 1, axis hole is had in sheet parts 1, a profile of tooth is had at least to protrude in axis hole, the outside of axle 2 has a spiral groove at least, the quantity that profile of tooth in sheet parts 1 axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle 2, and cooperatively interact, the cover that the outside of axle 2 is closely orderly has multi-disc sheet parts 1, relative position between axle 2 and multi-disc sheet parts 1 is fixed, metal is filled with in gap mutual between axle 2 and multi-disc sheet parts 1, screw shaft adopts the method for example 1-10 to produce, screw shaft in cylinder is that the left-handed positive screw shaft 11 shown in Fig. 2 cooperatively interacts with dextrorotation female screw axle 12.
Example 12: as shown in Fig. 1 to Figure 15 and example 1-10, disclosed a kind of compressor sintering screw rod, comprise cylinder, screw shaft is had in cylinder, described screw shaft is the screw shaft that a kind of quenching is carried out sintering simultaneously, screw shaft also comprises sheet parts 1, axle 2, there are engaging piece 7 at the bottom of tooth and tooth top engaging piece 8 in the outside of sheet parts 1, axis hole is had in sheet parts 1, a profile of tooth is had at least to protrude in axis hole, the outside of axle 2 has a spiral groove at least, the quantity that profile of tooth in sheet parts 1 axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle 2, and cooperatively interact, the cover that the outside of axle 2 is closely orderly has multi-disc sheet parts 1, relative position between axle 2 and multi-disc sheet parts 1 is fixed, metal is filled with in gap mutual between axle 2 and multi-disc sheet parts 1, screw shaft adopts the method for example 1-10 to produce, screw shaft in cylinder is that the dextrorotation sun screw shaft 13 shown in Fig. 3 cooperatively interacts with left-handed female screw axle 14.
Below by reference to the accompanying drawings embodiments of the present invention are explained in detail; but the present invention is not limited thereto; in the ken that person of ordinary skill in the field possesses; can also make a variety of changes under the prerequisite not departing from present inventive concept; person of ordinary skill in the field is from above-mentioned design; without performing creative labour, done all conversion, all drop within protection scope of the present invention.
Claims (10)
1. a screw shaft processing method of simultaneously carrying out sintering of quenching, described screw shaft comprises sheet parts (1), axle (2), there are engaging piece at the bottom of tooth (7) and tooth top engaging piece (8) in the outside of sheet parts (1), sheet parts has axis hole in (1), a profile of tooth is had at least to protrude in axis hole, the outside of axle (2) has a spiral groove at least, the quantity that profile of tooth in sheet parts (1) axis hole is protruded is identical with the quantity of the groove of the external helicoid shape of axle (2), and cooperatively interact, the cover that the outside of axle (2) is closely orderly has multi-disc sheet parts (1), relative position between axle (2) and multi-disc sheet parts (1) is fixed, axle 2(2) and multi-disc sheet parts (1) between be filled with metal in mutual gap, it is characterized in that:
Procedure of processing is as follows:
Step 1): sheet metal is machined into sheet parts (1);
Step 2): the outside then multi-disc sheet parts (1) being enclosed within axle (2), the tooth in sheet parts (1) axis hole is convex to cooperatively interact with the groove of the external helicoid shape of axle (2), forms the appearance of spiral oblique crank Z;
Step 3): the relative position then the multi-disc sheet parts (1) of the spiral oblique crank Z after above-mentioned moulding and axle (2) being carried out profile is fixed, and forms screw rod axis body after fixing;
Step 4): carry out the inspection of semifinished product to described screw rod axis body, qualified screw rod axis body enters next step, and defective screw rod axis body is again checked after entering the mould squeezing shaping of screw shaft shape, entered next step after qualified;
Step 5): then by the surperficial prefluxing of above-mentioned screw rod axis body;
Step 6): then at the outer matel coated powder of scaling powder, metal powder is filled between each sheet parts (1);
Step 7): then quenched by the screw rod axis body scribbling metal powder, while quenching, screw shaft surface is sintered into one, and forms the screw shaft of the sintering of quenching;
Step 8): then the screw shaft of above-mentioned thermal sintering is carried out product inspection, qualified finished product screw shaft warehouse-in, defective screw shaft is checked after carrying out the outer contour surface process of screw shaft again, the finished product screw shaft warehouse-in after qualified.
2. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, it is characterized in that: the wherein a kind of method adopting punching press, Linear cut, laser cutting, plasma cut, the cutting of high pressure liquid muscle power, sheet metal is processed into sheet parts (1).
3. the screw shaft processing method sintered is carried out in a kind of quenching according to claim (1) simultaneously, it is characterized in that: the metal powder that scaling powder is coated with outward is selected from the mixing of following any one or two or more arbitrary proportions: lead powder, glass putty, copper powder, aluminium powder.
4. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, it is characterized in that: in vacuum tank, complete the quenching of screw rod axis body.
5. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, it is characterized in that: quenching adopts wherein a kind of method of high-frequency quenching, mid frequency induction hardening or heat-treatment furnace quenching.
6. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 4 simultaneously, it is characterized in that: when quenching in vacuum tank, close vavuum pump, open intake valve fast, make air inlet fast in vacuum tank, by the time, in vacuum tank when pressure and normal-pressure balance, close intake valve and reopen vavuum pump and carry out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket once.
7. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, it is characterized in that: have a profile of tooth to protrude in the axis hole of described sheet parts (1), the spiral groove of axle (2) is the groove of a spiral profile of tooth.
8. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, and it is characterized in that: have multiple profile of tooth to protrude in described sheet parts (1) interior axis hole, the spiral groove of axle (2) is the groove of spiral multiple profile of tooth.
9. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, it is characterized in that: the method that the described relative position multi-disc sheet parts (1) of the spiral oblique crank Z after moulding and axle (2) being carried out profile is fixed is: with axial force clamping sheet parts (1) on axle, and fixing relative position.
10. the screw shaft processing method that sinters is carried out in a kind of quenching according to claim 1 simultaneously, it is characterized in that: the method that the described relative position multi-disc sheet parts (1) of the spiral oblique crank Z after moulding and axle (2) being carried out profile is fixed is: adopt auxiliary clamp, axial grip sheet parts (1) while clamp shaft, and fixing relative position.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109262208A (en) * | 2018-09-30 | 2019-01-25 | 江苏永昊高强度螺栓有限公司 | A kind of reaming method of through-hole bolt |
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| CN1434213A (en) * | 2002-01-24 | 2003-08-06 | 科普兰公司 | Powder metal scrolls |
| CN102348898A (en) * | 2009-03-11 | 2012-02-08 | 艾默生环境优化技术有限公司 | Powder metal scrolls and sinter-brazing methods for making the same |
| CN103443466A (en) * | 2011-02-10 | 2013-12-11 | 英格索尔-兰德公司 | Compressor system including gear integrated screw expander |
| SE1200522A1 (en) * | 2012-08-30 | 2013-10-08 | Benny Lindbrandt | Ways to manufacture a hollow screw rotor and screw rotor made according to the method |
| CN104052175A (en) * | 2013-03-15 | 2014-09-17 | 伊顿公司 | Low inertia laminated rotor |
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| CN109262208A (en) * | 2018-09-30 | 2019-01-25 | 江苏永昊高强度螺栓有限公司 | A kind of reaming method of through-hole bolt |
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Application publication date: 20151021 |