CN101899553B - Heat treatment technology and device of wear-resistant alloy cast steel - Google Patents
Heat treatment technology and device of wear-resistant alloy cast steel Download PDFInfo
- Publication number
- CN101899553B CN101899553B CN2009102036365A CN200910203636A CN101899553B CN 101899553 B CN101899553 B CN 101899553B CN 2009102036365 A CN2009102036365 A CN 2009102036365A CN 200910203636 A CN200910203636 A CN 200910203636A CN 101899553 B CN101899553 B CN 101899553B
- Authority
- CN
- China
- Prior art keywords
- cast steel
- wear
- resistant alloy
- alloy cast
- temperature
- 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.)
- Expired - Fee Related
Links
Landscapes
- Heat Treatment Of Articles (AREA)
Abstract
The invention relates to a heat treatment technology and device of wear-resistant alloy cast steel. The device comprises a heat treatment system composed of an annealing furnace, a quenching furnace, a quenching groove and a tempering furnace, and a transport system used for transporting and connecting cast steel between the above devices. The technology comprises the following steps: keeping temperature in the annealing furnace with the temperature of 850-900 DEG C for 3-5 hours, then discharging, performing air cooling; keeping temperature in the quenching furnace with the temperature of 890-910 DEG C for 150 minutes, discharging, cooling cast steel to about 300 DEG C with the quenching liquid, and finally keeping temperature in the tempering furnace with the temperature of 200-230 DEG C for 3-4 hours, discharging, and performing air cooling. The treated cast steel comprises the following ingredients by weight percent: 0.27-0.32% of C, 0.70-0.90% of Mn, 0.90-1.30% of Si, 1.40-1.80% of Cr, 0.10-0.20% of Mo, 0.10-0.20% of Ni and 0.02-0.03% of Ti. The treated cast steel can be used to prepare the engineering mechanical devices which contact with frozen rocks and the freezing zone.
Description
Technical field
The present invention relates to a kind of thermal treatment process and equipment thereof of wear-resistant alloy cast steel; Particularly, has the thermal treatment process and the equipment thereof of the wear-resistant alloy cast steel of superelevation hard toughness to can be used on the open-air winning apparatus, can being suitable for severe environment requirements such as HS, low temperature.
Background technology
Wearing and tearing are many industrial sector ubiquities and become a major reason that causes equipment failure or material damage that it has also consumed a large amount of energy and material simultaneously.By various engineering excavation machines and shovel loader bucket tooth, various wear resistant conveying pipes road, various grinder hammerhead and jaw, various grip-pad that wear-resistant alloy cast steel is made, owing to being in working conditions such as HS, weather extremes, its wear pattern is more serious.
The present state of the art is: one type is the H.T. of stressing material, and one type is the resistance to abrasion of stressing material.And can't reach an effectively unification, especially in the application that is used on the engineering machinery such as outdoor mining, excavation.The wear resistance of high mangaenese steel is with good conditionsi, and its ys is low, easily deformable; Low, interalloy wear resisting steel has better strength and toughness, and the wear resistance under low, the middle shock load is superior to high mangaenese steel, but has hardening capacity and the low problem of hardenability, and wear resistance is relatively poor; Contain in the rich chromium cast iron tissue and surpass 20% high firmness eutectic carbides, have excellent abrasive, alloying element content is high, production cost is high and the yielding rimose of high-temperature heat treatment is not enough but exist; Ordinary white cast iron and low-alloy chilled cast iron carbide hardness are low, and carbide is continuous shape and distributes, and fragility is big, is prone in the use peel off even ftracture.
To present situation; Obtain that a kind of production technique is simple, cost is low, obdurability is high, hardening capacity and hardenability be good and pollution-free; Guarantee the works fine in low temperature environment simultaneously, and the wear-resistant alloy cast steel that also can well use under the condition of multiplex (MUX) ore deposit has become a technical problem.Simultaneously people recognize that also the thermal treatment process that provides a kind of new alloying constituent with wear-resistant alloy cast steel to adapt is not only the sport technique segment of making wear-resistant alloy cast steel; Simultaneously; Rational heat treatment technology and the equipment that adapts thereof also will have positive effect to the mechanical property of wear-resistant alloy cast steel, alloying constituent is used more effectively.
Summary of the invention
For solving the problems of the technologies described above, the present invention provides a kind of thermal treatment process and equipment thereof that is suitable for mutually with New-type wear-resistant alloy cast steel.Said thermal treatment process comprises:
1, annealing: it is 850 ℃ of-900 ℃ of lehres that said wear-resistant alloy cast steel is placed temperature, is incubated 3-5 hour and comes out of the stove, then air cooling;
2, quench: quenching is taken out in the quenching furnance insulation that said wear-resistant alloy cast steel places temperature to be controlled at 900 ℃ ± 10 ℃ after 150 minutes, heat-eliminating medium is a water-soluble quenching liquid, and wear-resistant alloy cast steel is cold to be caused about 300 ℃;
3, tempering: it is the tempering stove to 200-230 ℃ that said wear-resistant alloy cast steel is placed temperature, is incubated 3-4 hour and takes out air cooling.
Corresponding; The present invention also provides a kind of HTFX to comprise: heat treatment system with said wear-resistant alloy cast steel is transported the haulage system that is connected between said heat treatment system; Said heat treatment system comprises: temperature can be set as 850 ℃-900 ℃, and the residence time can be set as 3-5 hour lehre; Temperature can be set as 900 ℃ ± 10 ℃, and the residence time can be set as 150 minutes quenching furnance; Cooling back product temperature is made as 300 ℃, is equipped with the quenching tank that heat-eliminating medium is a water-soluble quenching liquid; Temperature can be set as 200-230 ℃, and the residence time can be set as 3-4 hour tempering stove.
The present invention to chemical ingredients and mass percent thereof is: C:0.27-0.32; Mn:0.70-0.90; Si:0.90-1.30; Cr:1.40-1.80; Mo:0.10-0.20; Ni:0.10-0.20; After the above-mentioned thermal treatment of wear-resistant alloy cast steel process of Ti:0.02-0.03, its tensile strength: 1500-1800MPa, ys: 1200-1400MPa, unit elongation: δ s7-15%, v-notch impelling strength Akv25-40J, hardness: 48-55HRC.And be suitable in low temperature environment, as-20 ℃-0 ℃, and freeze the wear-resistant engineering machinery equipment that rock, frozen soil layer contact, adapt to requirement in the medium-term and long-term work of cold belt environment.
Embodiment
The present invention provides a kind of thermal treatment process and equipment thereof that is suitable for mutually with New-type wear-resistant alloy cast steel.Wherein need the chemical ingredients and the mass percent thereof of heat treated said cast steel to be: C:0.27-0.32; Mn:0.70-0.90; Si:0.90-1.30; Cr:1.40-1.80; Mo:0.10-0.20; Ni:0.10-0.20; Ti:0.02-0.03.The major function that wherein each alloy had is:
Carbon (C): carbon content is high more, and the intensity of steel and hardness value increase, and plasticity and toughness value reduce;
Silicon (Si): reinforced ferrite, improve tensile strength and ys, improve thermotolerance and solidity to corrosion, reduce toughness and plasticity;
Manganese (Mn): improve intensity, hardness and wear resistance;
Chromium (Cr): reduce the thermal conductivity of steel, can improve wear resistance;
Molybdenum (Mo): reinforced ferrite, improve high-temperature behavior, improve fragility;
Nickel (Ni): enlarging the austenitic area, is the effective element of austenitizing, improves intensity and does not significantly reduce plasticity, and good corrosion resistance is arranged;
Ferrotianium (Ti): can reinforced ferrite, deoxidation and crystal grain thinning.
Carry out the thermal treatment process of following order to above-mentioned wear-resistant alloy cast steel:
1, annealing: it is 850 ℃ of-900 ℃ of lehres that said wear-resistant alloy cast steel is placed temperature, is incubated 3-5 hour and comes out of the stove, then air cooling;
It is the push-down lehre that preferred embodiment adopts lehre, RJT-150-8 push-down isothermal annealing stove for example, and it is divided into 7 heating zone, and each Heating Zone Temperature is set at 850 ℃-900 ℃.The wear-resistant alloy cast steel wear-resistant alloy cast steel that a plurality of sizes that are prefabricated into lehre adapt is according to batch through above-mentioned 7 heating zone; And be heated intensification; And successive is incubated in above-mentioned 7 heating zone successively, so that the wear-resistant alloy cast steel wear-resistant alloy cast steel obtains the soaking time of useful length in lehre.Heating zone quantity also can be other quantity, its confirm according to one of be to adapt time with the required heating of wear-resistant alloy cast steel, with the heating requirements that guarantees wear-resistant alloy cast steel and the requirement of large scale continuous prod.
For reaching the purpose of automatic production and more effective control annealing operation, in 7 above-mentioned heating zone, can be provided with device for monitoring temperature simultaneously,, and further realize timely adjustment the lehre temperature with demonstration, record and the remote reporting of realization temperature.Preferably, one, two, three, four, the slender acanthopanax hot-zone adopts the TCW-32A three phase voltage regulating, six or seven districts are with digital displaying meter temperature indicating degree, and each is distinguished all has EL-100-60 multipoint recorder displayed record temperature.The wear-resistant alloy cast steel wear-resistant alloy cast steel is come out of the stove after 3-5 hour in insulation, carries out air cooling then.
2, quench: quenching is taken out in the quenching furnance insulation that said wear-resistant alloy cast steel places temperature to be controlled at 900 ℃ ± 10 ℃ after 150 minutes, heat-eliminating medium is a water-soluble quenching liquid, and wear-resistant alloy cast steel is cold to be caused about 300 ℃;
Preferred embodiment adopts casting chain-plate type quenching furnance, is made up of 5 heating zone, and each Heating Zone Temperature controls to 900 ℃ ± 10 ℃.The wear-resistant alloy cast steel insulation was taken out and is inserted quenching tank after 150 minutes, quenched.Can be provided with device for monitoring temperature in each heating zone,, and further realize timely adjustment the quenching furnance temperature with demonstration, record and the remote reporting of realization temperature.Preferably, each heating zone can be provided with the master control of digital display intelligent temperature controller, multipoint recorder centralized recording and monitoring.In addition, heating zone quantity also can be other quantity, its confirm according to one of be to adapt time with the required heating of wear-resistant alloy cast steel, with the heating requirements that guarantees wear-resistant alloy cast steel and the requirement of large scale continuous prod.
The heat-eliminating medium that adopts that quenches is a water-soluble quenching liquid.Preferably be furnished with PVA10%, three hexanol amine 1%, phenylformic acid receives 0.2%; The water-soluble quenching liquid of alizarin assistant 0.2%; The quenchant system can adopt has the higher systemic circulation form of automatic capability, and is furnished with special agitating function, guarantees supplying with stable continuously of hardening liquid; Temperature before hardening liquid quenches can be normal temps, for example below 30 degree.Wear-resistant alloy cast steel can be detained 8-25 minute time span according to condition of different in hardening liquid, cause about 300 ℃ so that wear-resistant alloy cast steel is cold, sees wear-resistant alloy cast steel off quenching tank by quenching tank lift travelling belt then.
3, tempering: it is the tempering stove to 200-230 ℃ that said wear-resistant alloy cast steel is placed temperature, is incubated 3-4 hour and takes out air cooling.
The preferred net belt type tempering stove that adopts: is made up of 5 heating zone, each Heating Zone Temperature is raised to 200-230 ℃, be incubated 3-4 hour taking-up air cooling.The quantity of heating zone can be selected other quantity equally for these reasons, and each heating zone can be provided with the master control of digital display intelligent temperature controller, and the multipoint recorder centralized recording is also monitored the equitemperature monitoring device, to realize demonstration, record and the remote reporting of temperature.
Corresponding with above-mentioned technology, the equipment that provides comprises: heat treatment system with wear-resistant alloy cast steel is transported the haulage system that is connected between said heat treatment system, said heat treatment system comprises:
1) lehre: temperature can be set as 850 ℃-900 ℃, and the residence time can be set as 3-5 hour lehre 1;
2) quenching furnance and quenching tank: temperature can be set as 900 ℃ ± 10 ℃, and the residence time can be set as 150 minutes quenching furnance; Cooling back product temperature is made as 300 ℃, is equipped with the quenching tank that heat-eliminating medium is a water-soluble quenching liquid;
3) tempering stove: temperature can be set as 200-230 ℃, and the residence time can be set as 3-4 hour tempering stove;
Said haulage system: it transports connection with said wear-resistant alloy cast steel between said heat treatment system, with the described thermal treatment process of the preamble of realizing said wear-resistant alloy cast steel.
In addition, this HTFX also is furnished with the said wear-resistant alloy cast steel of detection in the above-mentioned zone that needs the time to control and rests on the timing device of time in the above-mentioned stove, and can realize demonstration, record and the remote reporting of time, is convenient to the increasingly automated of whole production.
As improvement further; Also has upper control unit in this HTFX; Lehre in the native system, quenching furnance and quenching tank, quenchant system, tempering stove and haulage system can be respectively or the wired or wireless form of passing through simultaneously be connected with upper control unit; So that upper control unit can obtain the data signal that timing device and device for monitoring temperature in the native system send; And in time adjust the temperature and the residence time in the stove, and control haulage system matches with it and in time transports, and realizes that finally the system of extensiveization of total system controls automatically.
Above-mentioned HTFX has: automatically degree high, be convenient to its whole process is carried out long-range and on-the-spot process control, guaranteed that the said wear-resistant alloy cast steel that carries out smoothly, makes of thermal treatment process reaches required characteristics such as mechanical property.
After the above-mentioned thermal treatment of wear-resistant alloy cast steel process according to the invention, its tensile strength: 1500-1800MPa, ys: 1200-1400MPa, unit elongation: δ s7-15%, v-notch impelling strength Akv25-40J, hardness: 48-55HRC.
The announcement of the technical scheme through above-mentioned steel alloy is visible, and the steel alloy among the present invention has: production technique is simple, cost is low, obdurability is high, hardening capacity and hardenability is good and free of contamination novel product.And be suitable in low temperature environment, as-20 ℃-0 ℃, and freeze the engineering mechanical device that rock, frozen soil layer contact, adapt to requirement in the medium-term and long-term work of cold belt environment.
The embodiment that is disclosed among the present invention will obtain embodying and protection through claim, any according to the present invention in resulting enlightenment, among the scope that all falls into the present invention and protected.
Claims (4)
1. the thermal treatment process of a wear-resistant alloy cast steel, said technology gained cast steel chemical ingredients and mass percent thereof are: C:0.27-0.32; Mn:0.70-0.90; Si:0.90-1.30; Cr:1.40-1.80; Mo:0.10-0.20; Ni:0.10-0.20; Ti:0.02-0.03; Its tensile strength: 1500-1800MPa, ys: 1200-1400MPa, unit elongation: δ s7-15%; V-notch impelling strength Akv25-40J; Hardness: 48-55HRC is applicable to make to be used under-20 ℃-0 ℃ environment and to freeze the engineering mechanical device that rock, frozen soil layer contact
Said technology comprises:
1) annealing: it is 850 ℃ of-900 ℃ of lehres that said wear-resistant alloy cast steel is placed temperature, is incubated 3-5 hour and comes out of the stove, then air cooling;
2) quench: quenching is taken out in the quenching furnance insulation that said wear-resistant alloy cast steel places temperature to be controlled at 900 ℃ ± 10 ℃ after 150 minutes, heat-eliminating medium is a water-soluble quenching liquid, and wear-resistant alloy cast steel is chilled to 300 ℃;
3) tempering: it is the tempering stove to 200-230 ℃ that said wear-resistant alloy cast steel is placed temperature, is incubated 3-4 hour and takes out air cooling;
Said lehre, quenching furnance or tempering stove have a plurality of heating zone.
2. according to the thermal treatment process of the described wear-resistant alloy cast steel of claim 1, it is characterized in that: said each heating zone has the device for monitoring temperature that is used for said heating zone is realized demonstration, record and the remote reporting of temperature.
3. the thermal treatment process of wear-resistant alloy cast steel according to claim 1, it is characterized in that: said water-soluble quenching liquid contains PVA10%, three hexanol amine 1%, phenylformic acid receives 0.2%, alizarin assistant 0.2%.
4. the thermal treatment process of wear-resistant alloy cast steel according to claim 1, it is characterized in that: the time of said wear-resistant alloy cast steel in said water-soluble quenching liquid is 8-25 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102036365A CN101899553B (en) | 2009-05-26 | 2009-05-26 | Heat treatment technology and device of wear-resistant alloy cast steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102036365A CN101899553B (en) | 2009-05-26 | 2009-05-26 | Heat treatment technology and device of wear-resistant alloy cast steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101899553A CN101899553A (en) | 2010-12-01 |
| CN101899553B true CN101899553B (en) | 2012-01-18 |
Family
ID=43225470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102036365A Expired - Fee Related CN101899553B (en) | 2009-05-26 | 2009-05-26 | Heat treatment technology and device of wear-resistant alloy cast steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101899553B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484786A (en) * | 2013-09-10 | 2014-01-01 | 常熟市新洲机械制造厂 | Anti-wear food tool |
| CN103484633A (en) * | 2013-09-10 | 2014-01-01 | 常熟市新洲机械制造厂 | Thermal treatment technique of safety wear-resistant food processing tool material |
| CN104263325B (en) * | 2014-07-28 | 2017-08-08 | 南京航空航天大学 | SAW process for straight welded steel pipe weld seam coolant and its application method |
| CN105730795A (en) * | 2014-09-21 | 2016-07-06 | 金方明 | Rotary shaft connecting pin for packaging machine and heat treatment technology for rotary shaft connecting pin |
| CN106337578A (en) * | 2016-10-11 | 2017-01-18 | 湖北卓骏自动化工业有限公司 | Parking equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667605A (en) * | 1994-12-13 | 1997-09-16 | Ascometal | Method of fabrication of a piece of structural steel, and the steel fabricated thereby |
| EP0866154B1 (en) * | 1995-10-11 | 2002-03-13 | Asahi Kasei Kabushiki Kaisha | False twisted yarn |
| CN1560311A (en) * | 2004-02-27 | 2005-01-05 | 天津工程机械研究院 | Wear-resisting cast steel and preparation method thereof |
| CN1621554A (en) * | 2004-12-16 | 2005-06-01 | 邹乐平 | Complex alloy cast-steel excavator bucket teeth and its producing process |
-
2009
- 2009-05-26 CN CN2009102036365A patent/CN101899553B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5667605A (en) * | 1994-12-13 | 1997-09-16 | Ascometal | Method of fabrication of a piece of structural steel, and the steel fabricated thereby |
| EP0866154B1 (en) * | 1995-10-11 | 2002-03-13 | Asahi Kasei Kabushiki Kaisha | False twisted yarn |
| CN1560311A (en) * | 2004-02-27 | 2005-01-05 | 天津工程机械研究院 | Wear-resisting cast steel and preparation method thereof |
| CN1621554A (en) * | 2004-12-16 | 2005-06-01 | 邹乐平 | Complex alloy cast-steel excavator bucket teeth and its producing process |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平6-346152A 1987.01.14 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101899553A (en) | 2010-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101899551B (en) | Heat treatment technology of wear-resistant alloy cast steel | |
| CN101899553B (en) | Heat treatment technology and device of wear-resistant alloy cast steel | |
| CN101906565B (en) | Carbide-containing ausferrite spheroidal graphite cast iron grinding ball and manufacturing method thereof | |
| CN101899629B (en) | Abrasion-resistant alloy cast steel and manufacturing equipment thereof | |
| CN102367558B (en) | A kind of pump boric low alloy wear resistant steel | |
| CN102051455B (en) | Heat-treatment process for low-temperature abrasion-resistant alloy cast steel | |
| CN201560221U (en) | Thermal treatment device of low-temperature cast steel product | |
| CN1136086A (en) | Wearproof alloy with high manganese content | |
| CN101899627B (en) | Abrasion-resistant alloy cast steel and smelting and heat treatment processes | |
| CN101899552B (en) | Heat treatment equipment of antifriction alloy cast steel | |
| CN106893941A (en) | A kind of low-alloy wear-resistant steel and its heat treatment method | |
| CN201553761U (en) | Heat-treatment equipment of abrasion-resistant steel for engineering purposes | |
| CN103789655A (en) | Method for producing Nb alloying high-strength wear-resisting steel plate through on-line quenching | |
| CN101760692B (en) | Ultrahigh chromium cast grinding ball and heat treatment process thereof | |
| CN201553760U (en) | Heat treatment equipment of low-temperature abrasion-resistant steel | |
| CN201520791U (en) | Manufacturing equipment for wear-resistant alloy cast steel products for engineering | |
| CN201439534U (en) | Antifriction alloy cast steel equipment for heat processing | |
| CN201560220U (en) | Heat treatment equipment of cast steel product | |
| CN201560218U (en) | Heat treatment device for alloy cast steel | |
| CN201553759U (en) | Heat treatment device for abrasion resistant alloy cast steel | |
| CN201560219U (en) | Heat treatment equipment of low-temperature alloy steel product | |
| CN201593056U (en) | Heat treatment equipment for shock-resistant materials | |
| CN201605308U (en) | Manufacturing equipment for wear resistant alloy steel products | |
| CN102260777B (en) | Heat processing process for lockset material and equipment thereof | |
| CN101899628B (en) | Abrasion-resistant alloy cast steel and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140526 |