CN107201480A - A kind of complex phase forges abrasion-proof backing block preparation method - Google Patents
A kind of complex phase forges abrasion-proof backing block preparation method Download PDFInfo
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- CN107201480A CN107201480A CN201710235896.5A CN201710235896A CN107201480A CN 107201480 A CN107201480 A CN 107201480A CN 201710235896 A CN201710235896 A CN 201710235896A CN 107201480 A CN107201480 A CN 107201480A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/20—Ferrous alloys, e.g. steel alloys containing chromium with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Abstract
Abrasion-proof backing block preparation method is forged the invention discloses a kind of complex phase, is comprised the following steps：（1）Selection low-alloy steel is used as raw material；（2）Above-mentioned raw materials are smelted into steel ingot；Steel ingot carries out hot forging and causes liner plate；（3）It is heated to after shaping after austenitic temperature, is cooled to after MS points slow cool down to room temperature, is finally carried out being tempered again and obtain complex phase forging liner plate product；The present invention is by controlling low-alloy steel composition, forging and Technology for Heating Processing, obtain different heterogeneous structures, increase tissue tight's type and obdurability, obtain the abrasion that good heterogeneous structure tackles varying environment property, improve the mar-proof of abrasion-proof backing block, impact and corrode and denude simultaneously, stable liner plate quality, more than 2 times of life-span higher than casting single organization's liner plate life-span at present, extend the replacement cycle, reduce production cost.
Description
Technical field
The present invention relates to metal material processing technical field, and in particular to a kind of complex phase forges abrasion-proof backing block preparation method.
Background technology
Abrasion-resistant metal liner plate is mainly widely used in thermoelectricity, steel, smelting, machinery, coal, mine, chemical industry, cement, port
In the big plant equipment of all abrasions such as conveying system, pulverized coal preparation system, the crushing systems of enterprise such as mouth harbour；And liner plate is wear-resisting
Property and breaking resistance be the essential characteristic for having liner plate quality, wearability depend on liner plate hardness, breaking resistance depend on liner plate
Impact flexibility.Influence liner plate qualitative factor has the harmful element content, the defect in casting process and technique, heat treatment of alloy
Obtain microstructure and mechanical property；Metal backing substantially divides 3 major classes, first kind manganese steel austenite structure casting liner plate, advantage modeling
Property good impact resistance preferably, it is mar-proof on the weak side；Equations of The Second Kind belongs to after middle-low alloy steel quenching based on martensitic structure, and advantage intensity is high
Mar-proof good, impact resistance is on the weak side；3rd class wear resistant cast iron is with high alloy formation carbide with master, and advantage intensity is high mar-proof good,
Impact resistance is on the weak side；4th class low-alloy rolled plate tissue belongs to heterogeneous structure, but based on primary panel.But material is to lining
Abrasion mechanism-wear form of plate mainly divides：Based on cut friction, impact wear, based on corrosive wear and impact wear, draw
Trace friction, three kinds of corrosive wear occur simultaneously；Current liner plate problem is to have plenty of fracture damage as having plenty of abrasion infringement is
It is main；Current liner plate is with steel scrap by steel-making of intermediate frequency furnace, and chemical element is difficult to stabilization, and harmful element is uncontrollable, is molded to cast
Make and rolled to advocate peace based on wear-resisting flat board, casting process easily produces casting flaw, reduce at the service life of whole lining, heat
Reason liner plate, which is obtained, to be had based on austenite or martensite or carbide tissue, and rolling wear-resisting steel plate can not be arranged on angled and shape
Place.
The content of the invention
The present invention provides the preparation method that a kind of complex phase that quality is good, wearability is high forges abrasion-proof backing block.
The technical solution adopted by the present invention is：A kind of complex phase forges abrasion-proof backing block preparation method, comprises the following steps：
（1）Raw material is selected
Select low-alloy steel as raw material, essential element mass percent is as follows in low-alloy steel：C ＜ 0.8%, Mn 0.5%-
14%th, Cr ＜ 2%, Si ＜ 2%, Cu ＜ 0.8%, Ai ＜ 2%, Mo ＜ 1%, Ni ＜ 1%, P ＜ 0.03%, S ＜ 0.03%；
（2）Above-mentioned raw materials are smelted into steel ingot；Steel ingot hot forging is caused into liner plate, room temperature is cooled to；
（3）It is heated to after liner plate shaping after austenitic temperature, is cooled to MS point slow cool downs to room temperature, finally carries out being tempered again
Liner plate product is forged to required complex phase.
Further, the step（2）Middle warm and hot forging initial forging temperature is 1300 DEG C, and final forging temperature is 800 DEG C.
Further, the step（2）Heap is cold after the shaping of middle warm and hot forging or furnace cooling is to normal temperature.
Further, the step（3）In also include room temperature, then temper are cooled to after austenitic temperature.
Further, the step（2）In also include raw material is smelted into middle thick rolled plate, steel plate is caused into liner plate,
Performed again by Technology for Heating Processing.
The beneficial effects of the invention are as follows：
The present invention forges liner plate by controlling low-alloy steel composition, forging and Technology for Heating Processing to obtain heterogeneous structure, increases tissue
Tight type and obdurability, the abrasion of varying environment property can be tackled by obtaining different heterogeneous structure sequences, improve abrasion-proof backing block
Based on anti-scratch, impact, corrosion and shock resistance based on, cut, the quality of corrosive wear, make the intensity and toughness of abrasion-proof backing block same
Shi Tigao, the life-span, higher than more than 2 times of the single organization of casting at present liner plate, extends the replacement cycle, reduces production cost.
Brief description of the drawings
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
A kind of bainite multi-phase wear-resistant liner plate preparation method, comprises the following steps：
（1）Raw material is selected
Select low-alloy steel as raw material, essential element mass percent is as follows in low-alloy steel：C ＜ 0.8%, Mn 0.5%-
14%th, Cr ＜ 2%, Si ＜ 2%, Cu ＜ 0.8%, Ai ＜ 2%, Mo ＜ 1%, Ni ＜ 1%, P ＜ 0.03%, S ＜ 0.03%；Wherein C can be improved
The intensity of steel alloy, control Mn content increase quenching degree and reduction MS points are easy to obtain heterogeneous structure and improve the forgeability of steel
With plasticity, Mn content obtains heterogeneous structure to determine content according to the quenching degree and reduction MS points of liner plate thickness；Control Ni,
Ai and Cu content can resist extraneous corrosive power, and Mo, Cr and Si aid in being used for quenching degree and corrosion-resistant；Other trace elements
Play Grain refinement, harmful element P ＜ 0.03%, S ＜ 0.03%, control to the intensity of liner plate, plasticity, fracture toughness,
Cutting, tired, hot-short and anti-corrosion etc. performance improve a lot, and alloy control improves intensity and corrosion resistance；And in the present invention
Most important improvement is the content for controlling Mn；
（2）Above-mentioned raw materials are smelted into steel ingot according to technique；Warm and hot forging, 1200 DEG C of initial forging temperature, finish-forging are carried out after steel ingot cogging
800 DEG C of temperature, last roll forming or finishing shaping, are incubated furnace cooling to room temperature after shaping；Changed by warm and hot forging and cast
The original segregation of state liner plate tissue, loose, stomata, slag inclusion, larger column crystal and loose；Become by forging the big plasticity of liner plate
Shape, large dendritic crystal and columnar grain originally are changed into that crystal grain is thinner, isometric recrystallized structure of uniform size, and its tissue becomes more
Step up close, improve the plasticity and mechanical property and cast article defect of metal, improve the stability of liner plate quality；
（3）It is heated to after shaping after austenitic temperature, soaking time is calculated for two minutes according to liner plate thickness is minimum by every millimeter；It hurry up
Be cooled to MS spot hardenings processing after again slow cooling to room temperature, finally carry out being tempered the forging liner plate for obtaining heterogeneous structure, complex phase group again
Be woven with bainite and martensite it is anti-scratch based on, based on bainite, martensite and austenite cut and impact, bainite and Ovshinsky
Based on body shock resistance, martensite and austenite structure it is anti-scratch based on liner plate；Wherein MS points are according to the usage amount of alloying element
To calculate, slow cooling after MS points refers to isothermal or controls cooling velocity using measure；Obtained according to control MS point temperature below
Take the ratio of bainite, martensite and austenite or martensite and austenite heterogeneous structure；Tempering obtains good obdurability
Proportioning, improves toughness reduction liner plate fracture；Heterogeneous structure can tackle complicated abrasive conditions, austenite structure anti impact wear-proof
Can be good, bainite, martensitic structure are mar-proof, and abrasion is preferable；The metal of heterogeneous structure can match different tissues according to abrasion environment
The service life of liner plate is improved to resist abrasion.
Step（3）In also include be cooled to room temperature temper again from austenitic temperature.
Step（2）In raw material can also be smelted into middle thick rolled plate, steel plate hot is forged into liner plate, room is cooled to
Temperature, is then heat-treated again.
The present invention is by controlling low-alloy steel composition, and the content of manganese adjusts quenching degree and heterogeneous structure content and sequence,
A small amount of precious metal alloys element improves liner plate intensity and corrosion resistance；Forging increase tissue tight's type and reduction product is allowed to cast
The defect that process is brought, then excellent abrasive resistance is obtained by the metallographic structure of Heat Treatment Control complex phase, to tackle varying environment property
Abrasion, overall assembly combines the quality for improving abrasion-proof backing block, i.e., mar-proof and impact resistance and corrosive wear, product quality are obtained
Stability control, the life-span higher than more than 2 times of current liner plate life-span, extension replacement cycle reduction production cost and application it is all into
This；China is annual because nearly 2,000,000 t of ball mills attrition, various lining board of crusher consume nearly 500,000 t, and roll consumption is near
600000 t, the consumption such as various engineering excavation machines, loading machine, grinder hammerhead and Jaw plate is more than 500,000 t, therefore to former casting wear-resistant
The research and development of product has very great meaning.
Embodiment 1
Prepare as steps described below
（1）Raw material is selected
Low-alloy steel is selected as raw material, the control of essential element mass percent is as follows in low-alloy steel：C 0.2%、Mn 1%、Cu
0.2%、Cr 0.8%、Si 0.3%、P 0.01%、S 0.005%、；
（2）Above-mentioned raw materials are smelted into steel ingot；
（3）Carry out warm and hot forging after steel ingot, 1200 DEG C of initial forging temperature, 800 DEG C of final forging temperature or is finish-machined to last roll forming
Type, is incubated slow cooling to room temperature after shaping；
（4）It is heated to after shaping after austenitic temperature, naturally cools to MS point heaps and be cooled to room temperature, finally annealed again
The liner plate product of required martensite and austenite two-phase structure.
After tested, liner plate thickness 20mm impact resistances, cut, based on corrosion, final products tensile strength is 1100MPa, is bent
Intensity level is taken for 930MPa, elongation after fracture is 18%, and the contraction percentage of area is 60%, hardness HRC 30, ballistic work is v-notch ＞
60J, skimming wear 2.90, impact wear 1.15.
Embodiment 2
Prepare as steps described below
（1）Raw material is selected
Low-alloy steel is selected as raw material, the control of essential element mass percent is as follows in low-alloy steel：C 0.5%、Mn 3%、Cr
0.6%、Si 0.5%、Ai 0.5%、Mo 0.3%、P 0.02%、S 0.03%、；
（2）Above-mentioned raw materials are smelted into steel ingot；
（3）Carry out warm and hot forging after steel ingot, 1200 DEG C of initial forging temperature, 800 DEG C of final forging temperature or is finish-machined to last roll forming
Type, is incubated slow cooling to room temperature after shaping；
（4）It is heated to after shaping after austenitic temperature, is cooled to room temperature after air cooling to MS point isothermals, finally carries out annealing again
To required bainite and martensite and the liner plate product of austenite three-phase contexture.
After tested, liner plate thickness 50mm impact resistances, based on cut, final products tensile strength is 1200MPa, yield strength
For 1080MPa, elongation after fracture is 16%, and the contraction percentage of area is 62%, hardness HRC 38, ballistic work v-notch ＞ 60J, is slided
Abrasion 2.80, impact wear 1.32.
Embodiment 3
Prepare as steps described below
（1）Raw material is selected
Low-alloy steel is selected as raw material, the control of essential element mass percent is as follows in low-alloy steel：C 0.5%、Mn 14%、
Cu 0.3%、Cr 0.3%、Ai 0.9%、Si 0.9%、P 0.01%、S 0.02%；
（2）Above-mentioned raw materials are smelted into steel ingot；
（3）Carry out warm and hot forging after steel ingot, 1200 DEG C of initial forging temperature, 800 DEG C of final forging temperature or is finish-machined to last roll forming
Type, is incubated slow cooling to room temperature after shaping；
（4）It is heated to after shaping after austenitic temperature, is cooled to room temperature, temper is finally carried out again, obtains required austenite
With the liner plate product of martensite two-phase structure.
After tested, liner plate thickness 200mm impact resistances, cut, based on corrosion, final products tensile strength is 1150MPa, is bent
Intensity level is taken for 920MPa, elongation after fracture is 15%, and the contraction percentage of area is 66%, hardness HRC 35, ballistic work v-notch ＞
60J, skimming wear 3.85, impact wear 1.20.
Embodiment 4
Prepare as steps described below
（1）Raw material is selected
Low-alloy steel is selected as raw material, the control of essential element mass percent is as follows in low-alloy steel：C 0.8%、Mn 6%、Cr
0.8%、Si 0.9%、Ni 0.5%、P 0.01%、S 0.03%；
（2）Above-mentioned raw materials are smelted into steel ingot；
（3）Carry out warm and hot forging after steel ingot, 1200 DEG C of initial forging temperature, 800 DEG C of final forging temperature or is finish-machined to last roll forming
Type, is incubated slow cooling to room temperature after shaping；
（4）It is heated to after shaping after austenitic temperature, fog cooling is cooled to room temperature to MS point stoves, finally carries out annealing again obtaining institute
Need the liner plate product of martensite, bainite and austenite three-phase contexture.
After tested, liner plate thickness 300mm it is mar-proof and impact, corrosion based on, final products tensile strength be 1800MPa,
Yield strength value is 1320MPa, and elongation after fracture is 10%, and the contraction percentage of area is 40%, hardness HRC53, ballistic work v-notch ＞
60J, skimming wear 0.15, impact wear 0.29.
Embodiment 5
Prepare as steps described below
（1）Raw material is selected
Low-alloy steel is selected as raw material, the control of essential element mass percent is as follows in low-alloy steel：C 0.8%、Mn 10%、
Cu 0.1%、Cr 0.6%、Si 0.6%、P 0.01%、S 0.02%；
（2）Above-mentioned raw materials are smelted into steel ingot；
（3）Warm and hot forging is carried out after liner plate thickness 400mm steel ingots, 1200 DEG C of initial forging temperature, 800 DEG C of final forging temperature finally rolls hair
Base is incubated slow cooling to room temperature, then finishes shaping；
（4）It is heated to after shaping after austenitic temperature, air cooling naturally cools to room temperature again to MS points, finally carries out annealing again
To the product of required bainite, austenite and martensite three-phase contexture.
After tested, based on liner plate thickness 350mm impact resistances and cut, corrosion, final products tensile strength is 1840MPa,
Yield strength value is 1380MPa, and elongation after fracture is 11%, and the contraction percentage of area is 46%, hardness HRC 53, ballistic work v-notch
＞ 60J, skimming wear 1.21, impact wear 2.38.
Embodiment 6
Prepare as steps described below
（1）Raw material is selected
Low-alloy steel is selected as raw material, the control of essential element mass percent is as follows in low-alloy steel：C 0.8%、Mn 8%、Cu
0.5%、Cr 0.3%、Si 0.3%、P 0.02%、S 0.04%；
（2）Above-mentioned raw materials are smelted into steel ingot；
（3）Insulation slow cooling after warm and hot forging, 1200 DEG C of initial forging temperature, 800 DEG C of final forging temperature, last roll forming is carried out after steel ingot to arrive
Room temperature；
（4）It is heated to after liner plate thickness 10mm shapings after austenitic temperature, naturally cools to MS point isothermals and be cooled to room temperature, most
Carry out annealing again afterwards obtaining the product of required bainite, martensite and austenite three-phase contexture.
After tested, liner plate thickness 500mm it is mar-proof, impact, corrosion based on, final products tensile strength be 1860MPa, bend
Intensity level is taken for 1430MPa, elongation after fracture is 10%, and the contraction percentage of area is 42%, hardness HRC54, ballistic work v-notch ＞
60J, skimming wear 1.20, impact wear 1.65.
The present invention improves abrasion-proof backing block quality based on rational Integrated Optimal Design is carried out in abrasion-proof backing block quality, and feature exists
The abrasion of cut, impact and corrosion can be tackled simultaneously in bainite multi-phase wear-resistant liner plate；Main chemical elements improve liner plate
The effect of intensity, corrosion resistance and quenching degree, control harmful element improves the quality and performance of liner plate；Forging makes its tissue more step up
It is close, the plasticity and mechanical property of liner plate are improved, the defect of cast article is overcome；Heat treatment obtains different heterogeneous structures and carried
Toughness and the hardness matching of high liner plate, improve the ability of anti-scratch abrasion and impact wear；Overcome current casting wear-resistant liner plate
Chemical element is unstable, defect easily occurs in casting, and single organization's obdurability matching is not good, on the basis of service life is short, knot
Close the R＆D direction of high-end steel grade；Ensure abrasion-proof backing block quality and good wearability；Abrasion-proof backing block skill set forth in the present invention
Art compared with the technology of existing casting low-alloy liner plate, manganese steel abrasion-resistant cast liner plate, rich chromium cast iron casting liner plate and wear-resisting steel plate,
Low with wearability height, cost, production equipment and technique are simply easy to large-scale industrial production, and performance can be met or exceeded
The high-performance abrasion-proof steel liner plate of external tandem product, anti-wear performance can cover the high-end abrasion-proof backing block series of products of import.
Claims (5)
1. a kind of complex phase forges abrasion-proof backing block preparation method, it is characterised in that comprise the following steps：
(1) raw material is selected
Select low-alloy steel as raw material, essential element mass percent is as follows in low-alloy steel：C ＜ 0.8%, Mn 0.5%-
14%th, Cr ＜ 2%, Si ＜ 2%, Cu ＜ 0.8%, Ai ＜ 2%, Mo ＜ 1%, Ni ＜ 1%, P ＜ 0.03%, S ＜ 0.03%；
(2) above-mentioned raw materials are smelted into steel ingot；Steel ingot hot forging is caused into liner plate, room temperature is cooled to；
(3) liner plate is heated to after austenitic temperature, and MS points are cooled to soon, and slow cooling, to room temperature, finally carries out being tempered obtaining institute again again
Need the serial liner plate of complex phase forging.
2. a kind of complex phase forging abrasion-proof backing block preparation method according to claim 1, it is characterised in that：The step (2)
Middle warm and hot forging initial forging temperature is 1300 DEG C, and final forging temperature is 800 DEG C.
3. a kind of complex phase forging abrasion-proof backing block preparation method according to claim 1, it is characterised in that：The step (2)
Natural cooling or furnace cooling are to normal temperature after the shaping of middle warm and hot forging.
4. a kind of complex phase forging abrasion-proof backing block preparation method according to claim 1, it is characterised in that：The step (3)
In also include room temperature, then temper are cooled to after austenitic temperature.
5. a kind of complex phase forging abrasion-proof backing block preparation method according to claim 1, it is characterised in that：The step (2)
In also include raw material is smelted into middle thick rolled plate, steel plate is caused into liner plate, then perform by Technology for Heating Processing.
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| CN107699803A (en) * | 2017-09-29 | 2018-02-16 | 上海交通大学 | A kind of Ultra-low carbon cryogenic steel and its Technology for Heating Processing |
| CN113403530A (en) * | 2021-05-22 | 2021-09-17 | 江苏铸鸿重工股份有限公司 | High-strength corrosion-resistant alloy steel forged circle and preparation method thereof |
| CN115011867A (en) * | 2022-04-19 | 2022-09-06 | 清华大学 | High-strength-toughness wear-resistant steel lining plate and preparation method thereof |
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| CN115011867A (en) * | 2022-04-19 | 2022-09-06 | 清华大学 | High-strength-toughness wear-resistant steel lining plate and preparation method thereof |
| CN115491611A (en) * | 2022-10-27 | 2022-12-20 | 环磨科技控股(集团)有限公司 | Special lining plate for large-scale semi-autogenous mill |
| CN115838898A (en) * | 2022-11-22 | 2023-03-24 | 中钢集团邢台机械轧辊有限公司 | High-wear-resistance forged steel BD roller and manufacturing method thereof |
| CN117127113A (en) * | 2023-10-26 | 2023-11-28 | 江苏省沙钢钢铁研究院有限公司 | Side guide plate lining plate for hot continuous rolling and production method thereof |
| CN117127113B (en) * | 2023-10-26 | 2024-01-26 | 江苏省沙钢钢铁研究院有限公司 | Side guide plate lining plate for hot continuous rolling and production method thereof |
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Application publication date: 20170926 |