CN105925779A - Electromagnetic heat treatment technique for shaft part - Google Patents
Electromagnetic heat treatment technique for shaft part Download PDFInfo
- Publication number
- CN105925779A CN105925779A CN201610423840.8A CN201610423840A CN105925779A CN 105925779 A CN105925779 A CN 105925779A CN 201610423840 A CN201610423840 A CN 201610423840A CN 105925779 A CN105925779 A CN 105925779A
- Authority
- CN
- China
- Prior art keywords
- temperature
- shaft
- conducted
- heat treatment
- furnace
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/28—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for plain shafts
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/58—Oils
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/62—Quenching devices
- C21D1/63—Quenching devices for bath quenching
Abstract
The invention discloses an electromagnetic heat treatment technique for shaft parts. The electromagnetic heat treatment comprises the following steps that (1) overall heat treatment is conducted for hardening and tempering, a shaft is subjected to initial hardening and tempering treatment in a hearing furnace, the tempering temperature is 520-550 DEG C, heat preservation is conducted for 3 hours, and then oil cooling is conducted, so that the global hardness of the outer surface of the shaft reaches HRC 30-40, and tempered sorbite is obtained; (2) the shaft is preheated for 2-3 hours, and the furnace temperature of a preheating furnace is 450-460 DEG C; (3) after the shaft is subjected to electromagnetic induction heating for a certain period of time and reaches the quenching temperature, quenching is conducted; (4) after the shaft is quenched, tempering is conducted at the the temperature of 220-250 DEG C, and then heat preservation is conducted for 20-30 minutes so that structures can be stabilized; and (5) then heat preservation is conducted in a tempering furnace at the temperature of 300-310 DEG C for 8-9 hours, and air cooling is conducted to reach the normal temperature. By the adoption of the electromagnetic heat treatment technique, the high hardness of the shaft of the transmission shaft is achieved, so that the abrasion resistance, the radial bearing capacity and the axial bearing capacity are guaranteed, the hardness of the core and the outer diameter is low, the toughness is guaranteed, and the outer surface can be prevented from damaging other parts in contact with the outer surface.
Description
Technical field
The present invention relates to axial workpiece production and processing technical field, particularly belong to a kind of shaft forgings electricity
Magnetic heat treatment technique.
Background technology
Power transmission shaft is drive disk assembly conventional in industrial equipment field, is widely used in various equipment
In, according to the difference of application scenario, bearing should have the long-life, in high precision, high rigidity, low
The characteristic such as noise, high-wearing feature, sets at construction machinery industry, the such as machinery such as fork truck and excavator
Standby, also require to withstand shocks load.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide a kind of shaft forgings electromagnetic heat treatment work
Skill, have employed special Technology for Heating Processing so that power transmission shaft surface has high rigidity, to ensure
Wearability and radial and axial bearing capacity, and heart portion and external diameter are softs, both ensure
Toughness, can prevent again outer surface from injuring other and contact parts.
The technical solution used in the present invention is as follows:
A kind of shaft forgings electromagnetic heat treatment technique, including following technique:
1) bulk heat treatmet is quenched, and axle is first modifier treatment in heating furnace, and temperature is
520-550℃；It is incubated 3 hours；The most oily cold so that axle outer surface integral hardness reaches
HRC30-40, it is thus achieved that tempered sorbite；
2) axle is preheated 2-3 hour, preheating furnace furnace temperature 450-460 DEG C；
3) axle carries out after electromagnetic induction heating certain time reaches hardening heat, quenching；Quench
Double quenching is carried out by rapid cooling quenching oil and slow cooling quenching oil, by shaft member austenitizing during fire
After, first carry out rapid cooling quenching oil, took out before shaft member is also not up to this quenching Jie's temperature, vertical
I.e. put into slow cooling quenching oil, shaft member so can be made to harden, quenching stress can be made again to reduce, will
The temperature of rapid cooling quenching oil is heated to 20-50 DEG C, reduces viscosity, promotes its mobility, from
And make cooling velocity improve cooling uniformly；
4), after axle quenching, it is tempered under conditions of temperature is 220-250 DEG C, is then incubated 20-30
Minute, with stabilizing tissue；
5) again after tempering furnace inside holding 8-9 hour of 300-310 DEG C air cooling to normal temperature.
Described rapid cooling quenching oil has following weight of material number to make, polyisobutene 2-3 part,
EPDM 8-12 part, polynary polycarboxylic acids 6-10 part and urge cold multiple agent 4-6 part to mix,
It is then heated to 50-65 DEG C, is cooled to room temperature after insulation 1-2h and obtains.
Compared with the prior art, beneficial effects of the present invention is as follows:
Present invention employs special Technology for Heating Processing so that power transmission shaft surface has high rigidity,
To ensure wearability and radial and axial bearing capacity, and heart portion and external diameter are softs,
Both ensure that toughness, and can prevent again outer surface from injuring other and contact parts.
Detailed description of the invention
A kind of shaft forgings electromagnetic heat treatment technique, including following technique:
1) bulk heat treatmet is quenched, and axle is first modifier treatment in heating furnace, and temperature is
520-550℃；It is incubated 3 hours；The most oily cold so that axle outer surface integral hardness reaches
HRC30-40, it is thus achieved that tempered sorbite；
2) axle is preheated 2-3 hour, preheating furnace furnace temperature 450-460 DEG C；
3) axle carries out after electromagnetic induction heating certain time reaches hardening heat, quenching；Quench
Double quenching is carried out by rapid cooling quenching oil and slow cooling quenching oil, by shaft member austenitizing during fire
After, first carry out rapid cooling quenching oil, took out before shaft member is also not up to this quenching Jie's temperature, vertical
I.e. put into slow cooling quenching oil, shaft member so can be made to harden, quenching stress can be made again to reduce, will
The temperature of rapid cooling quenching oil is heated to 20-50 DEG C, reduces viscosity, promotes its mobility, from
And make cooling velocity improve cooling uniformly；
4), after axle quenching, it is tempered under conditions of temperature is 220-250 DEG C, is then incubated 20-30
Minute, with stabilizing tissue；
5) again after tempering furnace inside holding 8-9 hour of 300-310 DEG C air cooling to normal temperature.
Described rapid cooling quenching oil has following weight of material number to make, polyisobutene 2-3 part,
EPDM 8-12 part, polynary polycarboxylic acids 6-10 part and urge cold multiple agent 4-6 part to mix,
It is then heated to 50-65 DEG C, is cooled to room temperature after insulation 1-2h and obtains.
The general principle of the present invention, principal character and the present invention excellent has more than been shown and described
Point.Skilled person will appreciate that of the industry, the present invention is not restricted to the described embodiments, on
State the principle that the present invention is simply described described in embodiment and specification, without departing from the present invention
On the premise of spirit and scope, the present invention also has various changes and modifications, and these change and change
Enter to both fall within scope of the claimed invention.Claimed scope is by appended power
Profit claim and equivalent thereof define.
Claims (2)
1. a shaft forgings electromagnetic heat treatment technique, it is characterised in that include following technique:
1) bulk heat treatmet is quenched, and axle is first modifier treatment in heating furnace, and temperature is
520-550℃；It is incubated 3 hours；The most oily cold so that axle outer surface integral hardness reaches
HRC30-40, it is thus achieved that tempered sorbite；
2) axle is preheated 2-3 hour, preheating furnace furnace temperature 450-460 DEG C；
3) axle carries out after electromagnetic induction heating certain time reaches hardening heat, quenching；Quench
Double quenching is carried out by rapid cooling quenching oil and slow cooling quenching oil, by shaft member austenitizing during fire
After, first carry out rapid cooling quenching oil, took out before shaft member is also not up to this quenching Jie's temperature, vertical
I.e. put into slow cooling quenching oil, the temperature of rapid cooling quenching oil be heated to 20-50 DEG C, reduce viscosity,
Promote its mobility；
4), after axle quenching, it is tempered under conditions of temperature is 220-250 DEG C, is then incubated 20-30
Minute, with stabilizing tissue；
5) again after tempering furnace inside holding 8-9 hour of 300-310 DEG C air cooling to normal temperature.
A kind of shaft forgings electromagnetic heat treatment technique the most according to claim 1, its feature
It is: described rapid cooling quenching oil has following weight of material number to make, polyisobutene 2-3 part,
EPDM 8-12 part, polynary polycarboxylic acids 6-10 part and urge cold multiple agent 4-6 part to mix,
It is then heated to 50-65 DEG C, is cooled to room temperature after insulation 1-2h and obtains.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610423840.8A CN105925779A (en) | 2016-06-16 | 2016-06-16 | Electromagnetic heat treatment technique for shaft part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610423840.8A CN105925779A (en) | 2016-06-16 | 2016-06-16 | Electromagnetic heat treatment technique for shaft part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105925779A true CN105925779A (en) | 2016-09-07 |
Family
ID=56830109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610423840.8A Pending CN105925779A (en) | 2016-06-16 | 2016-06-16 | Electromagnetic heat treatment technique for shaft part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105925779A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055702A (en) * | 2018-10-17 | 2018-12-21 | 含山县林头宝兴铸造厂 | A kind of lathe spindle with good impact flexibility |
| CN110144448A (en) * | 2019-06-03 | 2019-08-20 | 江苏建中新材料科技有限公司 | A kind of process for heat treatment of steel pipe suitable for manufacturing passenger car transmission shaft |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113210A (en) * | 2003-10-08 | 2005-04-28 | Ntn Corp | Heat treatment system |
| CN104152662A (en) * | 2014-08-25 | 2014-11-19 | 无锡普瑞腾传动机械有限公司 | Transmission shaft heat treatment technology |
| CN104975151A (en) * | 2015-07-20 | 2015-10-14 | 江苏金基特钢有限公司 | Alloy steel quenching oil composite |
-
2016
- 2016-06-16 CN CN201610423840.8A patent/CN105925779A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005113210A (en) * | 2003-10-08 | 2005-04-28 | Ntn Corp | Heat treatment system |
| CN104152662A (en) * | 2014-08-25 | 2014-11-19 | 无锡普瑞腾传动机械有限公司 | Transmission shaft heat treatment technology |
| CN104975151A (en) * | 2015-07-20 | 2015-10-14 | 江苏金基特钢有限公司 | Alloy steel quenching oil composite |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055702A (en) * | 2018-10-17 | 2018-12-21 | 含山县林头宝兴铸造厂 | A kind of lathe spindle with good impact flexibility |
| CN110144448A (en) * | 2019-06-03 | 2019-08-20 | 江苏建中新材料科技有限公司 | A kind of process for heat treatment of steel pipe suitable for manufacturing passenger car transmission shaft |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104099460A (en) | Heat treatment process for outer ring of rolling bearing | |
| CN106319535B (en) | Heat treatment method for gear shaft | |
| CN104372148A (en) | Heat treatment process of bearing steel | |
| CN103397293A (en) | Carburization process for heavy machinery part | |
| CN102943168B (en) | Rolling bearing manufactured by special heat treatment process | |
| CN105925779A (en) | Electromagnetic heat treatment technique for shaft part | |
| CN104152662A (en) | Transmission shaft heat treatment technology | |
| CN105950851A (en) | Shaft heat treatment technology | |
| CN104313288A (en) | Heat treatment process for 42CrMo wind power spindle | |
| CN108866312A (en) | A kind of bearing heat treatment process | |
| JP2016148428A (en) | Rolling shaft and method of manufacturing the same | |
| CN109628726A (en) | A kind of heat treatment process of gear | |
| CN110042217B (en) | Nano bainite bearing heat treatment method and bearing manufactured by same | |
| CN106755916A (en) | The rolling bearing manufactured using special thermal treatment technique | |
| CN103614521B (en) | Medium carbon steel material large diesel engine output shaft tempering process | |
| CN104651597A (en) | Heat treatment technique of automobile drive shaft sleeve | |
| CN105238913A (en) | Pin shaft of engine timing chain and tufftriding process | |
| CN106148882A (en) | A kind of quenching technical of miniature electrical machinery axle | |
| CN104057250A (en) | Processing technology for guaranteeing assembling interchangeability of inner and outer rings of revolving support | |
| KR100727196B1 (en) | A constant velocity joint cage for vehicle and method for producing it | |
| RU2471878C1 (en) | Method of thermal treatment of heads and heavy-load dies | |
| CN106282502B (en) | The processing technology of miniature guide rail | |
| CN104451080A (en) | Treatment method of preventing loosening of spring | |
| CN105018696A (en) | Heat processing technology method of austenitic ductile iron wear-resistant casting | |
| CN105643204A (en) | Processing technology of pin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160907 |
|
| RJ01 | Rejection of invention patent application after publication |