CN107868862A - 35CrMoAl Heat-Treatment of Steel methods - Google Patents

35CrMoAl Heat-Treatment of Steel methods Download PDF

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Publication number
CN107868862A
CN107868862A CN201610845162.4A CN201610845162A CN107868862A CN 107868862 A CN107868862 A CN 107868862A CN 201610845162 A CN201610845162 A CN 201610845162A CN 107868862 A CN107868862 A CN 107868862A
Authority
CN
China
Prior art keywords
35crmoal
quenching
heat
steel
workpiece
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.)
Withdrawn
Application number
CN201610845162.4A
Other languages
Chinese (zh)
Inventor
刘存福
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.)
Chongqing Xiangyang Instrument Co Ltd
Original Assignee
Chongqing Xiangyang Instrument 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 Chongqing Xiangyang Instrument Co Ltd filed Critical Chongqing Xiangyang Instrument Co Ltd
Priority to CN201610845162.4A priority Critical patent/CN107868862A/en
Publication of CN107868862A publication Critical patent/CN107868862A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • C21D1/30Stress-relieving
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23CCOATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C23C8/24Nitriding
    • C23C8/26Nitriding of ferrous surfaces

Abstract

The invention discloses a kind of 35CrMoAl Heat-Treatments of Steel method, comprise the following steps:Stock --- forging --- full annealing --- thick machining --- quenching --- high tempering --- essence machining --- stress relief annealing --- thick grinding --- gas nitriding processing --- fine grinding.The 35CrMoAl steel of this method processing has preferably mechanical performance, the deformation of workpiece can be better controled in follow-up carburizing and quenching process, so that the carburizing and quenching of workpiece deforms more regular property, workpiece is can guarantee that machining accuracy during cold working, improve product quality.

Description

35CrMoAl Heat-Treatment of Steel methods
Technical field
The invention belongs to non-ferrous metal field, and in particular to a kind of 35CrMoAl Heat-Treatments of Steel method.
Background technology
Boring spindle is typically manufactured using 35CrMoAl at present, and process is:Forging stock → machine adds → and normalizing → ball blast → machine adds → carburizing and quenching → tempering → ball blast, in this process, normalizing is carried out to 35CrMoAl, the purpose is to adjust carburizing steel Microscopic structure and hardness, to improve machinability, and prepared for follow-up carburizing and quenching.
Normalizing is used to 35CrMoAl carburizing steel, net carbide can be eliminated, crystal grain thinning, improve the cutting of material Processing characteristics, reduce the deformation of follow-up carburizing and quenching.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of 35CrMoAl steel Heat treatment method, the 35CrMoAl steel processed with this method and learn that performance is good, and intensity is high, be highly suitable for the system of boring spindle Make, the deformation of workpiece can be better controled in follow-up carburizing and quenching process so that the carburizing and quenching deformation of workpiece more has Regularity, workpiece is can guarantee that machining accuracy during cold working, improve product quality.
To achieve the above object, the invention provides a kind of 35CrMoAl Heat-Treatments of Steel method, it is characterised in that:Including Following steps:Stock --- forging --- full annealing --- thick machining --- quenching --- high tempering --- essence machinery Processing --- stress relief annealing --- thick grinding --- gas nitriding processing --- fine grinding.
Further, 25 DEG C of the charging temperature of the full annealing, 900-940 DEG C is heated to, is incubated 3 hours.
Further, it is to put the workpiece among 30-50 DEG C of quenching oil during the quenching, soaking time 1 hour.
Further, it is characterized in that:The high tempering temperature is 630 DEG C, is incubated 3 hours.
The beneficial effects of the invention are as follows:Of the invention its intensity, plasticity and toughness are all preferable, have good comprehensive mechanical Can, the deformation of workpiece can be better controled in follow-up carburizing and quenching process so that the carburizing and quenching deformation of workpiece more has Regularity, workpiece is can guarantee that machining accuracy during cold working, improve product quality.
Embodiment
Technical scheme disclosed by the invention is a kind of 35CrMoAl Heat-Treatments of Steel method, it is characterised in that:Including as follows Step:--- --- --- slightly --- quenching --- high tempering --- essence machinery adds machining stock for full annealing for forging Work --- stress relief annealing --- thick grinding --- gas nitriding processing --- fine grinding.
Further, 25 DEG C of the charging temperature of the full annealing, 900-940 DEG C is heated to, is incubated 3 hours.
Further, it is to put the workpiece among 30-50 DEG C of quenching oil during the quenching, soaking time 1 hour.
Further, the high tempering temperature is 630 DEG C, is incubated 3 hours.
The 35CrMoAl steel and performance processed with this method are good, and intensity is high, is highly suitable for the making of boring spindle.
Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without Creative work can is needed to make many modifications and variations according to the design of the present invention.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical scheme, all should be in the protection domain being defined in the patent claims.

Claims (4)

  1. A kind of 1. 35CrMoAl Heat-Treatments of Steel method, it is characterised in that:Comprise the following steps:Stock --- forging --- is completely --- thick machining --- --- --- cut high tempering for quenching by essence machining --- stress relief annealing --- corase grind for annealing Process --- gas nitriding processing --- fine grinding.
  2. 2. 35CrMoAl Heat-Treatments of Steel method as claimed in claim 1, it is characterized in that:The charging temperature 25 of the full annealing DEG C, 900-940 DEG C is heated to, is incubated 3 hours.
  3. 3. 35CrMoAl Heat-Treatments of Steel method as claimed in claim 1 or 2, it is characterized in that:It is to put workpiece during the quenching Among entering 30-50 DEG C of quenching oil, soaking time 1 hour.
  4. 4. the 35CrMoAl Heat-Treatment of Steel methods as described in claim 1 or 2 or 3, it is characterized in that:The high tempering temperature For 630 DEG C, 3 hours are incubated.
CN201610845162.4A 2016-09-23 2016-09-23 35CrMoAl Heat-Treatment of Steel methods Withdrawn CN107868862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610845162.4A CN107868862A (en) 2016-09-23 2016-09-23 35CrMoAl Heat-Treatment of Steel methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610845162.4A CN107868862A (en) 2016-09-23 2016-09-23 35CrMoAl Heat-Treatment of Steel methods

Publications (1)

Publication Number Publication Date
CN107868862A true CN107868862A (en) 2018-04-03

Family

ID=61751348

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610845162.4A Withdrawn CN107868862A (en) 2016-09-23 2016-09-23 35CrMoAl Heat-Treatment of Steel methods

Country Status (1)

Country Link
CN (1) CN107868862A (en)

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Application publication date: 20180403

WW01 Invention patent application withdrawn after publication