CN110499414A - The processing technology of shaft forgings - Google Patents

The processing technology of shaft forgings Download PDF

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Publication number
CN110499414A
CN110499414A CN201810475664.1A CN201810475664A CN110499414A CN 110499414 A CN110499414 A CN 110499414A CN 201810475664 A CN201810475664 A CN 201810475664A CN 110499414 A CN110499414 A CN 110499414A
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CN
China
Prior art keywords
round steel
processing
shaft forgings
carried
sand stripping
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
Application number
CN201810475664.1A
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Chinese (zh)
Inventor
俞杰
周志伟
周旭
王乾
张灏平
徐益峰
刘栋林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU STEEL GROUP CO Ltd JIANGSU
SUZHOU SUXIN SPECIAL STEEL CO Ltd
Peking University Founder Group Co Ltd
Original Assignee
JIANGSU STEEL GROUP CO Ltd JIANGSU
SUZHOU SUXIN SPECIAL STEEL CO Ltd
Peking University Founder Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JIANGSU STEEL GROUP CO Ltd JIANGSU, SUZHOU SUXIN SPECIAL STEEL CO Ltd, Peking University Founder Group Co Ltd filed Critical JIANGSU STEEL GROUP CO Ltd JIANGSU
Priority to CN201810475664.1A priority Critical patent/CN110499414A/en
Publication of CN110499414A publication Critical patent/CN110499414A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B1/00Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/06Surface hardening
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18Hardening; Quenching with or without subsequent tempering
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00Heat treatment of ferrous alloys
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/28Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts

Abstract

The present invention provides a kind of processing technology of shaft forgings, is related to the manufacturing technology of shaft forgings.The processing technology of shaft forgings provided by the invention carries out straightening processing to quenched treated round steel using cross-roll straightening machine, conducive to the production cost for reducing shaft forgings, improves the production efficiency of shaft forgings;Simultaneously, sand stripping processing is carried out to the round steel after aligning, spiral helicine aligning trace on surface fully to clear up round steel, guarantee that round steel has good straight degree, conducive to the qualification rate for improving finished product, the production efficiency of shaft forgings is further increased, and is conducive to the good assembly of shaft forgings and other parts.

Description

The processing technology of shaft forgings
Technical field
The present invention relates to the manufacturing technology of shaft forgings more particularly to a kind of processing technologys of shaft forgings.
Background technique
The parts such as shaft forgings such as piston rod, pin shaft are very widely used parts.By taking pin shaft as an example: pin shaft is common Connector, can be not only used for static state and be fixedly connected, and can do relative motion with connected piece, the quality of pin shaft directly affects it With the assembling quality of connected piece.
In the prior art, since the quenched performance that can make steel is significantly adjusted, there is preferable intensity, modeling Property and toughness, have good comprehensive mechanical performance the round steel of conditioned processing is usually therefore selected in working shaft-like part, Round steel is aligned by gag straightener, then, then with Centreless lathe peeling processing is carried out to the round steel after aligning.
However, since cooling stress is larger, round steel is caused to have biggish original straight degree poor during round steel is quenched, This causes the aligning stress in straightening process larger again, and so as to cause the initial surface of round steel, there are screw type aligning traces.
In Centreless lathe peeling processing, the cutter of Centreless lathe can be moved along the initial surface position of round steel, Spiral lamination is still remained so as to cause in the steel surface after turning peeling, and then it is poor to cause the round steel after peeling to have Straight degree.
Summary of the invention
In view of the above-mentioned drawbacks in the prior art, the present invention provides a kind of processing technology of shaft forgings, is conducive to reduce axis class The production cost of part improves the production efficiency of shaft forgings;Simultaneously, additionally it is possible to fully clear up spiral helicine on the surface of round steel Trace is aligned, guarantees that round steel has good straight degree, conducive to the qualification rate for improving finished product, further increases the production effect of shaft forgings Rate, and it is conducive to the good assembly of shaft forgings and other parts.
The present invention provides a kind of processing technology of shaft forgings, comprising: carries out to molding round steel quenched;It is aligned using cross roll Round steel after machine modifier treatment carries out cross roll aligning;Sand stripping processing is carried out to the round steel after cross roll aligning using sand stripping machine;To warp The round steel for crossing sand stripping processing carries out peeling processing;Surface hardening processing is carried out to peeling treated round steel;At surface hardening Round steel after reason carries out tempering, and obtains finished product.
Optionally, described that sand stripping processing is carried out to the round steel after cross roll aligning using sand stripping machine, comprising: in turning for sand stripping machine Under conditions of speed is 300-500 revs/min, sand stripping processing is carried out to the round steel after cross roll aligning.
Optionally, it is described using sand stripping machine to cross roll aligning after round steel carry out sand stripping processing, comprising: sand stripping machine into Under conditions of being 1-1.5 ms/min to speed, sand stripping processing is carried out to the round steel after cross roll aligning.
Optionally, described that sand stripping processing is carried out to the round steel after cross roll aligning using sand stripping machine, comprising: in the list of sand stripping machine Under conditions of side cutting output is 0.1-0.2 millimeters, sand stripping processing is carried out to the round steel after cross roll aligning.
Optionally, described quenched to the progress of molding round steel, comprising: under conditions of 820-880 degrees Celsius, to molding Round steel carries out Quench heating and keeps the temperature.
Optionally, described quenched to the progress of molding round steel, further includes: under conditions of 500-600 degrees Celsius, to quenching Treated, and round steel carries out high tempering processing.
Optionally, the round steel includes following at least one: No. 45 round steel, 40Cr round steel, 42CrMo round steel.
Optionally, described that surface hardening processing is carried out to peeling treated round steel, comprising: in 900 degrees Celsius of condition Under, surface hardening processing is carried out to the round steel by sand stripping processing.
Optionally, described that tempering is carried out to surface hardening treated round steel, comprising: at 150-200 degrees Celsius Under the conditions of, tempering is carried out to the round steel by sand stripping processing.
Optionally, after carrying out tempering to surface hardening treated round steel, further includes: to the finished product of acquisition into Row product examine, product examine qualification are used as finished product.
The processing technology of shaft forgings provided by the invention, using cross-roll straightening machine, treated that round steel is aligned to quenched Processing improves the production efficiency of shaft forgings conducive to the production cost for reducing shaft forgings;Meanwhile sand is carried out to the round steel after aligning Stripping is handled, the spiral helicine aligning trace on the surface fully to clear up round steel, is guaranteed that round steel has good straight degree, is conducive to The qualification rate for improving finished product further increases the production efficiency of shaft forgings, and is conducive to the good dress of shaft forgings and other parts Match.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is the flow diagram of the processing technology for the shaft forgings that the present embodiment one provides;
Fig. 2 is the flow diagram of the processing technology for the shaft forgings that the present embodiment two provides.
Through the above attached drawings, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings It is not intended to limit the scope of this disclosure concept by any means with verbal description, but is by referring to specific embodiments Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is A part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.In the absence of conflict, following embodiment and implementation Feature in example can be combined with each other.
Embodiment one
Fig. 1 is the flow diagram of the processing technology for the shaft forgings that the present embodiment one provides.
Fig. 1 is please referred to, the present embodiment provides a kind of processing technologys of shaft forgings, comprising:
S101, to molding round steel carry out it is quenched;
Since the quenched performance that can make round steel is significantly adjusted, there is preferable intensity, plasticity and toughness, With good comprehensive mechanical performance, therefore, modifier treatment first is carried out to molding round steel in working shaft-like part.
Specifically, round steel includes following at least one: No. 45 round steel, 40Cr round steel, 42CrMo round steel are easily processed into Type is conducive to reduce processing cost.Certainly, the type of round steel namely the material of round steel are not limited to this, and the present embodiment is herein It illustrates.
It is quenched to the progress of molding round steel, it can specifically include: under conditions of 820-880 degrees Celsius, to molding circle Steel carries out Quench heating and keeps the temperature.
Specifically, molding round steel can be heated to 820 DEG C~880 with certain heating speed by quenching unit DEG C, specific heating speed can be configured according to the material and diameter of round steel, and the present embodiment is not specifically limited herein; Wherein, quenching unit can use existing quenching unit.When molding round steel is heated to 820 DEG C~880 DEG C by quenching unit When, start to keep the temperature, so that the temperature inside round steel reaches unanimity, the time of heat preservation specifically can be according to the material of round steel and straight Diameter is configured, and the present embodiment is not specifically limited herein.
Then, the round steel for being up to soaking time, which immerses in quenching media rapidly, to be quickly cooled down, and cooling velocity needs are greater than The critical cooling rate of steel, to reduce the cooling difference inside round steel.The present embodiment does not do specific limit to cooling velocity herein It is fixed, it can be configured according to actual needs.Wherein, quenching media can be situated between for common quenchings such as water, oil, fused salt, molten alkali Matter.
It is quenched to the progress of molding round steel, it can also include: under conditions of 500-600 degrees Celsius, after quenching treatment Round steel carry out high tempering processing;Namely the round steel after quenching is heated and is heated to 820 DEG C~880 DEG C and protects Temperature, wherein the round steel after quenching is heated with certain heating speed, and keeps the temperature the regular hour, heating speed and guarantor The warm time can specifically be configured according to the material and diameter of round steel, and the present embodiment is not specifically limited herein.
In addition, molding round steel can specifically be processed using cast shaping process, specifically, by the melting sources of round steel At molten steel, molten steel is refined, the molten steel after refining is cast into slab, slab is rolled into molding round steel.Certainly, circle The moulding process of steel is not limited to this, and the present embodiment is merely illustrative herein.
S102, cross roll aligning is carried out using the round steel after cross-roll straightening machine modifier treatment;
Cross-roll straightening machine is mainly used for aligning round steel, removes the out-of-roundness of round steel buckling after molding and lateral section The defects of.The gag straightener used in compared with the existing technology, the price of cross-roll straightening machine is lower, conducive to shaft forgings are reduced Production cost, also, while guaranteeing the processing quality of shaft forgings, additionally it is possible to improve the production efficiency of shaft forgings.
S103, sand stripping processing is carried out to the round steel after cross roll aligning using sand stripping machine;
By carrying out sand stripping processing, aligning trace can be effectively removed.
Specifically, can sand shell machine revolving speed be 300-500 revs/min under conditions of, to cross roll aligning after round steel into Row sand stripping processing, in favor of improving the production efficiency of shaft forgings.
At the same time it can also the round steel under conditions of feed speed of sand stripping machine is 1-1.5 ms/min, after being aligned to cross roll Sand stripping processing is carried out, can sufficiently remove the spiral helicine aligning trace on round steel surface.
In addition, being carried out under conditions of the unilateral cutting output of sand stripping machine is 0.1-0.2 millimeters to the round steel after cross roll aligning Sand stripping processing, in favor of observing and controlling the quality condition on the surface of round steel after sand is shelled.It is cleaned out convenient for trace will be aligned.
S104, peeling processing is carried out to the round steel by sand stripping processing;
Specifically peeling processing can be carried out to exploitation treated round steel using Centreless lathe.
In the present embodiment, since sand stripping becomes smaller in the diameter of axle that will lead to shaft forgings,, can in peeling treatment process Processing capacity is reduced, correspondingly to guarantee that final finished product can satisfy size requirement.
S105, surface hardening processing is carried out to peeling treated round steel;
Specifically surface hardening processing can be carried out to the round steel by sand stripping processing under conditions of 900 DEG C.Surface hardening When need quickly heating so that the surface of round steel quickly reaches hardening heat, just stood in the center portion that heat has little time to pass to round steel It is i.e. cooling so that round steel can have a surface of high rigidity, high-wearing feature, and the center portion of round steel can still be maintained it is good tough Property.
There are many quick heating means that surface hardening uses, such as electric induction, flame, electrical contact, laser.Application at present Most wide is electric induction heating process, and induction heating is exactly that the alternating current for passing to certain frequency in an induction coil (has height Frequently, intermediate frequency, three kinds of power frequency), make to generate the identical alternating magnetic field of frequency around induction coil, the round steel being placed among magnetic field will produce Raw identical as induction coil frequency, contrary induced current namely vortex;Due to kelvin effect, vortex is concentrated mainly on circle The outer surface of steel, the resistance heat caused by being vortexed makes the outer surface of round steel be rapidly heated to hardening heat, immediately to round steel Water spray, the outer surface of round steel is hardened, and heating speed is exceedingly fast, and usually only several seconds, conducive to the life for further increasing shaft forgings Produce efficiency.
S106, tempering is carried out to surface hardening treated round steel, and obtains finished product.
Specifically tempering can be carried out to surface hardening treated round steel under conditions of 150-200 degrees Celsius.
Namely the round steel after the quenching of surface is heated and is heated to 150 DEG C~200 DEG C and keeps the temperature, wherein with one Fixed heating speed heats the round steel after quenching, and keeps the temperature the regular hour, is finally cooled to room temperature.Heating speed and Soaking time can be specifically configured according to the material and diameter of round steel, and the present embodiment is not specifically limited herein.
Using the processing technology of shaft forgings provided in this embodiment, the cost of shaft forgings can decline 1000 yuan~1700 yuan; The production efficiency of shaft forgings can be improved 3~5 times.
The processing technology of shaft forgings provided in this embodiment, using cross-roll straightening machine, treated that round steel is rectified to quenched Straight processing improves the production efficiency of shaft forgings conducive to the production cost for reducing shaft forgings;Meanwhile the round steel after aligning is carried out Sand stripping is handled, the spiral helicine aligning trace on the surface fully to clear up round steel, guarantees that round steel has good straight degree, benefit In the qualification rate for improving finished product, the production efficiency of shaft forgings is further increased, and be conducive to the good of shaft forgings and other parts Assembly.
Embodiment two
Fig. 2 is the flow diagram of the processing technology for the shaft forgings that the present embodiment two provides.
Referring to figure 2., the present embodiment provides a kind of processing technologys of shaft forgings, comprising:
S201, to molding round steel carry out it is quenched;
Since the quenched performance that can make round steel is significantly adjusted, there is preferable intensity, plasticity and toughness, With good comprehensive mechanical performance, therefore, modifier treatment first is carried out to molding round steel in working shaft-like part.
Specifically, round steel includes following at least one: No. 45 round steel, 40Cr round steel, 42CrMo round steel are easily processed into Type is conducive to reduce processing cost.Certainly, the type of round steel namely the material of round steel are not limited to this, and the present embodiment is herein It illustrates.
It is quenched to the progress of molding round steel, it can specifically include: under conditions of 820-880 degrees Celsius, to molding circle Steel carries out Quench heating and keeps the temperature.
Specifically, molding round steel can be heated to 820 DEG C~880 with certain heating speed by quenching unit DEG C, specific heating speed can be configured according to the material and diameter of round steel, and the present embodiment is not specifically limited herein; Wherein, quenching unit can use existing quenching unit.When molding round steel is heated to 820 DEG C~880 DEG C by quenching unit When, start to keep the temperature, so that the temperature inside round steel reaches unanimity, the time of heat preservation specifically can be according to the material of round steel and straight Diameter is configured, and the present embodiment is not specifically limited herein.
Then, the round steel for being up to soaking time, which immerses in quenching media rapidly, to be quickly cooled down, and cooling velocity needs are greater than The critical cooling rate of steel, to reduce the cooling difference inside round steel.The present embodiment does not do specific limit to cooling velocity herein It is fixed, it can be configured according to actual needs.Wherein, quenching media can be situated between for common quenchings such as water, oil, fused salt, molten alkali Matter.
It is quenched to the progress of molding round steel, it can also include: under conditions of 500-600 degrees Celsius, after quenching treatment Round steel carry out high tempering processing;Namely the round steel after quenching is heated and is heated to 820 DEG C~880 DEG C and protects Temperature, wherein the round steel after quenching is heated with certain heating speed, and keeps the temperature the regular hour, heating speed and guarantor The warm time can specifically be configured according to the material and diameter of round steel, and the present embodiment is not specifically limited herein.
In addition, molding round steel can specifically be processed using cast shaping process, specifically, by the melting sources of round steel At molten steel, molten steel is refined, the molten steel after refining is cast into slab, slab is rolled into molding round steel.Certainly, circle The moulding process of steel is not limited to this, and the present embodiment is merely illustrative herein.
S202, cross roll aligning is carried out using the round steel after cross-roll straightening machine modifier treatment;
Cross-roll straightening machine is mainly used for aligning round steel, removes the out-of-roundness of round steel buckling after molding and lateral section The defects of.The gag straightener used in compared with the existing technology, the price of cross-roll straightening machine is lower, conducive to shaft forgings are reduced Production cost, also, while guaranteeing the processing quality of shaft forgings, additionally it is possible to improve the production efficiency of shaft forgings.
S203, sand stripping processing is carried out to the round steel after cross roll aligning using sand stripping machine, to remove aligning trace.
Specifically, can sand shell machine revolving speed be 300-500 revs/min under conditions of, to cross roll aligning after round steel into Row sand stripping processing, in favor of improving the production efficiency of shaft forgings.
At the same time it can also the round steel under conditions of feed speed of sand stripping machine is 1-1.5 ms/min, after being aligned to cross roll Sand stripping processing is carried out, can sufficiently remove the spiral helicine aligning trace on round steel surface.
In addition, being carried out under conditions of the unilateral cutting output of sand stripping machine is 0.1-0.2 millimeters to the round steel after cross roll aligning Sand stripping processing, in favor of observing and controlling the quality condition on the surface of round steel after sand is shelled.It is cleaned out convenient for trace will be aligned.
S204, peeling processing is carried out to the round steel by sand stripping processing;
Specifically peeling processing can be carried out to exploitation treated round steel using Centreless lathe.
In the present embodiment, since sand stripping becomes smaller in the diameter of axle that will lead to shaft forgings,, can in peeling treatment process Processing capacity is reduced, correspondingly to guarantee that final finished product can satisfy size requirement.
S205, surface hardening processing is carried out to peeling treated round steel;
Specifically surface hardening processing can be carried out to the round steel by sand stripping processing under conditions of 900 DEG C.Surface hardening When need quickly heating so that the surface of round steel quickly reaches hardening heat, just stood in the center portion that heat has little time to pass to round steel It is i.e. cooling so that round steel can have a surface of high rigidity, high-wearing feature, and the center portion of round steel can still be maintained it is good tough Property.
There are many quick heating means that surface hardening uses, such as electric induction, flame, electrical contact, laser.Application at present Most wide is electric induction heating process, and induction heating is exactly that the alternating current for passing to certain frequency in an induction coil (has height Frequently, intermediate frequency, three kinds of power frequency), make to generate the identical alternating magnetic field of frequency around induction coil, the round steel being placed among magnetic field will produce Raw identical as induction coil frequency, contrary induced current namely vortex;Due to kelvin effect, vortex is concentrated mainly on circle The outer surface of steel, the resistance heat caused by being vortexed makes the outer surface of round steel be rapidly heated to hardening heat, immediately to round steel Water spray, the outer surface of round steel is hardened, and heating speed is exceedingly fast, and usually only several seconds, conducive to the life for further increasing shaft forgings Produce efficiency.
S206, tempering is carried out to surface hardening treated round steel;
Specifically tempering can be carried out to surface hardening treated round steel under conditions of 150-200 degrees Celsius.
Namely the round steel after the quenching of surface is heated and is heated to 150 DEG C~200 DEG C and keeps the temperature, wherein with one Fixed heating speed heats the round steel after quenching, and keeps the temperature the regular hour, is finally cooled to room temperature.Heating speed and Soaking time can be specifically configured according to the material and diameter of round steel, and the present embodiment is not specifically limited herein.
S207, product examine is carried out to the round steel after tempering, product examine qualification is used as finished product.
Specifically, the straight degree that can measure the round steel after tempered processing measures, to the tempered processing of measurement The length and/or diameter of round steel afterwards measure, and carry out carrying out flaw detection to the round steel after tempered processing;It will directly spend, grow The processing such as degree and diameter are all satisfied design requirement and the round steel without wound is packed as finished product, conveyed;Straight degree is not met and is wanted Ask, alternatively, length be unsatisfactory for requiring perhaps diameter be unsatisfactory for requiring or there is the round steel of wound to be respectively put into corresponding collecting dress In setting, in order to subsequent processing.
Certainly, the product examine of round steel is not limited to this, the present embodiment is merely illustrative herein.
Using the processing technology of shaft forgings provided in this embodiment, the cost of shaft forgings can decline 1000 yuan~1700 yuan; The production efficiency of shaft forgings can be improved 3~5 times.
The processing technology of shaft forgings provided in this embodiment, using cross-roll straightening machine, treated that round steel is rectified to quenched Straight processing improves the production efficiency of shaft forgings conducive to the production cost for reducing shaft forgings;Meanwhile the round steel after aligning is carried out Sand stripping is handled, the spiral helicine aligning trace on the surface fully to clear up round steel, guarantees that round steel has good straight degree, benefit In the qualification rate for improving finished product, the production efficiency of shaft forgings is further increased, and be conducive to the good of shaft forgings and other parts Assembly.
Those of ordinary skill in the art will appreciate that: realize that all or part of the steps of above-mentioned each method embodiment can lead to The relevant hardware of program instruction is crossed to complete.Program above-mentioned can be stored in a computer readable storage medium.The journey When being executed, execution includes the steps that above-mentioned each method embodiment to sequence;And storage medium above-mentioned include: ROM, RAM, magnetic disk or The various media that can store program code such as person's CD.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of processing technology of shaft forgings characterized by comprising
Molding round steel is carried out quenched;
Cross roll aligning is carried out using the round steel after cross-roll straightening machine modifier treatment;
Sand stripping processing is carried out to the round steel after cross roll aligning using sand stripping machine;
Peeling processing is carried out to the round steel by sand stripping processing;
Surface hardening processing is carried out to peeling treated round steel;
Tempering is carried out to surface hardening treated round steel, and obtains finished product.
2. the processing technology of shaft forgings according to claim 1, which is characterized in that described to be aligned using sand stripping machine to cross roll Round steel afterwards carries out sand stripping processing, includes: under conditions of the revolving speed of sand stripping machine is 300-500 revs/min, after cross roll aligning Round steel carries out sand stripping processing.
3. the processing technology of shaft forgings according to claim 1, which is characterized in that described to be aligned using sand stripping machine to cross roll Round steel afterwards carries out sand stripping processing, comprising: under conditions of the feed speed of sand stripping machine is 1-1.5 ms/min, after cross roll aligning Round steel carry out sand stripping processing.
4. the processing technology of shaft forgings according to claim 1, which is characterized in that described to be aligned using sand stripping machine to cross roll Round steel afterwards carries out sand stripping processing, comprising: under conditions of the unilateral cutting output of sand stripping machine is 0.1-0.2 millimeters, rectifys to cross roll Round steel after straight carries out sand stripping processing.
5. the processing technology of shaft forgings according to claim 1, which is characterized in that described to be adjusted to molding round steel Matter, comprising:
Under conditions of 820-880 degrees Celsius, Quench heating is carried out to molding round steel and is kept the temperature.
6. the processing technology of shaft forgings according to claim 5, which is characterized in that described to be adjusted to molding round steel Matter, further includes:
Under conditions of 500-600 degrees Celsius, high tempering processing is carried out to the round steel after quenching treatment.
7. the processing technology of shaft forgings according to claim 6, which is characterized in that the round steel includes following at least one Kind: No. 45 round steel, 40Cr round steel, 42CrMo round steel.
8. the processing technology of shaft forgings according to claim 1, which is characterized in that it is described to peeling treated round steel into Row surface hardening processing, comprising:
Under conditions of 900 degrees Celsius, surface hardening processing is carried out to the round steel by sand stripping processing.
9. the processing technology of shaft forgings according to claim 1, which is characterized in that it is described to surface hardening treated circle Steel carries out tempering, comprising:
Under conditions of 150-200 degrees Celsius, tempering is carried out to the round steel by sand stripping processing.
10. the processing technology of -9 described in any item shaft forgings according to claim 1, which is characterized in that surface hardening Round steel after reason carries out after tempering, further includes: carries out product examine to the finished product of acquisition, product examine qualification is used as finished product.
CN201810475664.1A 2018-05-17 2018-05-17 The processing technology of shaft forgings Pending CN110499414A (en)

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