CN107904491A - High abrasion brake rim hot continuous rolling alloy-steel plate and its production method - Google Patents

High abrasion brake rim hot continuous rolling alloy-steel plate and its production method Download PDF

Info

Publication number
CN107904491A
CN107904491A CN201711181471.7A CN201711181471A CN107904491A CN 107904491 A CN107904491 A CN 107904491A CN 201711181471 A CN201711181471 A CN 201711181471A CN 107904491 A CN107904491 A CN 107904491A
Authority
CN
China
Prior art keywords
steel plate
brake rim
production
hot continuous
continuous rolling
Prior art date
Application number
CN201711181471.7A
Other languages
Chinese (zh)
Inventor
罗许
李俊洪
刘韶华
陈俊
肖强
Original Assignee
攀钢集团攀枝花钢铁研究院有限公司
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 攀钢集团攀枝花钢铁研究院有限公司 filed Critical 攀钢集团攀枝花钢铁研究院有限公司
Priority to CN201711181471.7A priority Critical patent/CN107904491A/en
Publication of CN107904491A publication Critical patent/CN107904491A/en

Links

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
    • C21D1/25Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
    • 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226Hot rolling
    • 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
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/02Ferrous alloys, e.g. steel alloys containing silicon
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/04Ferrous alloys, e.g. steel alloys containing manganese
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/44Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C38/00Ferrous alloys, e.g. steel alloys
    • C22C38/18Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/40Ferrous alloys, e.g. steel alloys containing chromium with nickel
    • C22C38/50Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium

Abstract

The invention belongs to metal material field, and in particular to a kind of high abrasion brake rim hot continuous rolling alloy-steel plate and its production method.For the problems such as existing brake rim strength of materials and wearability are bad, production cost is high, the present invention provides a kind of high abrasion brake rim hot continuous rolling alloy-steel plate and its production method, and steel plate composition is:By weight percentage, C:0.30~0.40%, Si:0.20~0.35%, Mn:0.70~0.95%, Cr:0.90~1.05%, P:≤ 0.020%, S:≤ 0.010%, Mo:0.25~0.35%, Ni:0.08~0.15%, Ti:≤ 0.015%, remaining is Fe and inevitable impurity.Heating-up temperature and rolling temperature are strictly controlled during production, the sparse cooling of laminar flow is used after finish rolling, the steel plate being prepared has the advantages that mechanical property is good, and wearability is high, can be used in brake rim, economic benefit is obvious.

Description

High abrasion brake rim hot continuous rolling alloy-steel plate and its production method
Technical field
The invention belongs to metal material field, and in particular to a kind of high abrasion brake rim hot continuous rolling alloy-steel plate and its life Production method.
Background technology
At present, the big truck of domestic demands brake force, bus, are still roused using drum brakes in front and back wheel, most of to use Pearlite gray cast iron material, outer surface are mostly smooth structure, and the circumferential outer surface of small part product only has some longitudinal directions The rib parallel with brake drum axis, and brake rim takes very big market ratio.Using the brake drum deficiency of these structures Be in:1. easily cause to break off the base because material is unqualified;Tensile strength is too low;Easily cause cracking and tortoise because of thermal shock Split.2. brake drum radiates not in time, heat passes to rapidly rubber tyre, causes tire pressure to raise, and the danger of tyre break is big Big increase, so as to reduce braking safety and reliability.In order to overcome drawbacks described above, the performance of brake rim material is proposed The requirement of higher.
The material of production brake rim mainly has ferrite cast iron, Lanzcast iron etc. at present.Ferrite cast iron is in heavily loaded work Intensity and wearability deficiency when being used under condition, yielding, when machining, glues knife, poor surface smoothness;Lanzcast iron generally needs Add the alloying element such as Cr, Cu, Ce and coordinate and be heat-treated and top layer quenching treatment again, production cost is higher, its thermal conductivity Less than ferrite cast iron.
The content of the invention
The technical problem to be solved in the present invention is:Existing the brake rim strength of materials and wearability are bad, production cost is high The problems such as.
The present invention solve above-mentioned technical problem technical solution be:A kind of high abrasion brake rim hot continuous rolling steel alloy is provided Plate and its production method.
The present invention provides a kind of high abrasion brake rim hot continuous rolling alloy-steel plate, its constituent is:Percentage by weight Than meter, C:0.30~0.40%, Si:0.20~0.35%, Mn:0.70~0.95%, Cr:0.90~1.05%, P:≤ 0.020%, S:≤ 0.010%, Mo:0.25~0.35%, Ni:0.08~0.15%, Ti:≤ 0.015%, remaining is for Fe and not Evitable impurity.
Preferably, above-mentioned high abrasion brake rim hot continuous rolling alloy-steel plate, its constituent are:By weight percentage, C:0.31~0.38%, Si:0.22~0.30%, Mn:0.75~0.80%, Cr:0.95~1.02%, P:≤ 0.018%, S: ≤ 0.010%, Mo:0.28~0.31%, Ni:0.10~0.15%, Ti:0.008~0.015%, remaining is Fe and can not keep away The impurity exempted from.
Present invention also offers a kind of production method of above-mentioned high abrasion brake rim hot continuous rolling alloy-steel plate, including it is following Step:Desulfurizing iron-converter smelting top-bottom blowing-dephosphorization, deoxidation, alloying-chain-wales Argon-LF electrical heating, secondary alloy Change-RH application of vacuum-hello calcium line-continuous casting-heating of plate blank-high-pressure water descaling-roughing-Coil Box batches-finish rolling-section cooling- Batch-packaging and storage;The slab heating temperature is 1180~1230 DEG C.
Wherein, in production method of the above-mentioned high abrasion brake rim with hot continuous rolling alloy-steel plate, the roughing using 5 passages or 7 passes, every time deflection >=20%.
Wherein, in production method of the above-mentioned high abrasion brake rim with hot continuous rolling alloy-steel plate, during the roughing among base it is thick Spend for more than 4 times of finished product thickness.
Wherein, in production method of the above-mentioned high abrasion brake rim with hot continuous rolling alloy-steel plate, the entry temperature at finishing is 970~1020 DEG C, finish rolling finishing temperature is 830~880 DEG C.
Wherein, it is sparse using laminar flow after finish rolling in production method of the above-mentioned high abrasion brake rim with hot continuous rolling alloy-steel plate The type of cooling is cooled down.
Beneficial effects of the present invention are:
The present invention is by controlling the chemical composition of steel in optimal level, using distinctive rolling mill practice, in the operation of rolling In accurate control workpiece thickness, to ensure that the austenite recrystallization of roughing deformation process is complete, and adjusted using after stamping The new process of matter processing makes, and quenches+600 DEG C of high temperings by 900 DEG C, the brake drum quality being prepared is small, mechanicalness Can be high, also with good thermal diffusivity, thermal fatigue resistance, wearability, structural homogenity and shock absorption.Given birth to using the method for the present invention The high-wearing feature brake rim of production 400~560MPa of yield strength of hot continuous rolling alloy coil of strip, 610~720MPa of tensile strength, Meanwhile yield strength 950MPa~1100MPa after punching press flanging forming rear braking brake drum modifier treatment, tensile strength 1050 ~1200MPa, elongation percentage A >=14%, quenching hardness are generally HB380~500.At 650 DEG C, test overall strain Δ ε is 0.25%th, under the conditions of circulating 30 times/min of the frequency, high temperature low-cycle fatigue life performance >=1500 time, are suitable for use as brake rim use, With important economic benefit.
Embodiment
The present invention provides a kind of high abrasion brake rim hot continuous rolling alloy-steel plate, its constituent is:Percentage by weight Than meter, C:0.30~0.40%, Si:0.20~0.35%, Mn:0.70~0.95%, Cr:0.90~1.05%, P:≤ 0.020%, S:≤ 0.010%, Mo:0.25~0.35%, Ni:0.08~0.15%, Ti:≤ 0.015%., remaining for Fe and Inevitable impurity.
Preferably, above-mentioned high abrasion brake rim hot continuous rolling alloy-steel plate, its constituent are:By weight percentage, C:0.31~0.38%, Si:0.22~0.30%, Mn:0.75~0.80%, Cr:0.95~1.02%, P:≤ 0.018%, S: ≤ 0.010%, Mo:0.28~0.31%, Ni:0.10~0.15%, Ti:0.008~0.015%, remaining is Fe and can not keep away The impurity exempted from.
In steel plate of the present invention, tri- kinds of alloying components of Mo, Ni and Ti are particularly added, alloy species are more, alloy-steel plate Intensity higher, the hot continuous rolling alloy-steel plate yield strength and tensile strength of mentioned component are high, and elongation percentage is high, the high temperature low-cycle fatigue longevity Performance >=1500 time are ordered, there is higher wearability, be suitably used as high abrasion brake rim.
Present invention also offers a kind of production method of above-mentioned high abrasion brake rim hot continuous rolling alloy-steel plate, including it is following Step:Desulfurizing iron-converter smelting top-bottom blowing-dephosphorization, deoxidation, alloying-chain-wales Argon-LF electrical heating, secondary alloy Change-RH application of vacuum-hello calcium line-continuous casting-heating of plate blank-high-pressure water descaling-roughing-Coil Box batches-finish rolling-section cooling- Batch-packaging and storage.
Wherein, in production method of the above-mentioned high abrasion brake rim with hot continuous rolling alloy-steel plate, the slab heating temperature For 1180~1230 DEG C.Slab obtained by continuous casting is heated to 1180~1230 DEG C of insulation roughing, according to the difference of finished product thickness, The slab of 200~250mm thickness passes through 5 passages or 7 passage roughing, and every time deflection is necessary >=and 20%, ensure that austenite is tied again Crystalline substance, fining austenite grains.Different according to finished product thickness, workpiece thickness is different, but workpiece thickness must be in finished product thickness More than 4 times.
Steel billet after roughing then carries out Coil Box and batches, and the Coil Box is the steel-making common Coil Box of industry, Such as mandrelless transform Coil Box.Base exchanges end to end among being realized in the Coil Box, to ensure that the elongated temperature of steel billet is uniform; Secondary oxidation iron sheet is removed to ensure that steel billet plate face is bright and clean at the same time.
Middle base carries out displacement uncoiling after being batched through Coil Box, and finish rolling, entry temperature at finishing are carried out into finish rolling area For 970~1020 DEG C, finish rolling finishing temperature is 830~880 DEG C, is cooled down after finish rolling using the sparse type of cooling of laminar flow.
The equipment that the present invention uses connects for steel-making industry common device, including common mammoth conveter (>=220t), sheet slab Casting machine 250*1950mm types casting machine, common wide steel hot tandem (walking beam heating furnace, reversing rougher, finishing tandem rolling Unit, coiling machine), traditional 2050 hot continuous rolling production line of strip etc..
Explanation will be further explained to the embodiment of the present invention by embodiment below, but do not indicated that this The protection domain of invention is limited in described in embodiment in scope.
Embodiment 1~3 prepares high-wearing feature brake rim hot continuous rolling alloy-steel plate using the method for the present invention
Using chemical composition steel production roll of steel plate as shown in Table 1, specific operating process is:Desulfurizing iron-converter smelting Refine top-bottom blowing-dephosphorization, deoxidation, alloying-chain-wales Argon-LF electrical heating, secondary alloyed-RH application of vacuum-feed calcium line- Continuous casting-heating of plate blank-high-pressure water descaling-roughing-Coil Box batches-finish rolling-section cooling-and batches-packaging and storage.
The chemical composition of 1 embodiment of table
Embodiment C Si Mn Cr P S Mo Ni Ti
1 0.32 0.21 0.75 0.94 0.016 0.006 0.28 0.11 0.013
2 0.32 0.21 0.78 0.97 0.015 0.007 0.31 0.12 0.013
3 0.36 0.24 0.81 1.02 0.014 0.007 0.31 0.14 0.014
Comparative example 1 0.33 0.21 0.57 1.01 0.015 0.007 0.26 0.12 0.011
Comparative example 2 0.33 0.22 0.58 1.03 0.016 0.008 0.27 0.13 0.013
Wherein, the rolling thickness of roll of steel plate, heating-up temperature, thickness, start rolling temperature and the finishing temperature such as institute of table 2 of middle base Show.Roughing uses five passage de-scalings during rolling, ensures dephosphorization water pressure >=22MPa, ensures scale removal effect.Workpiece thickness presses table 3 controls.
Finish rolling:Mm finishing mill unit >=4 rack cooling water is opened, and puts into middle pressure de-scaling water between F1 racks.
The hot rolling technology controlling value of 2 embodiment of table
The control of 3 workpiece thickness of table requires
Finished product thickness/mm Workpiece thickness/mm Remarks
4.0~7.0 42±1 Put into hot rolling box function
7.0~8.0 44±1 Put into hot rolling box function
8.0~14.0 46~50 ——
14.0~18.0 52±1 ——
Comparative example 1~2 does not use the method for the present invention hot continuous rolling alloy-steel plate
In comparative example, prepare that the constituent of steel plate is as shown in table 1, the parameter of hot rolling technology is as shown in table 2, remaining step Same embodiment.
The roll of steel plate produced to embodiment 1~3, comparative example 1~2 carries out performance measurement, and the assay method of mechanical property is adopted Carried out with the method for GB/T228, GB/T 232, the assay method of high temperature low-cycle fatigue life performance is:At 650 DEG C, test The fatigue life that overall strain Δ ε is 0.25%, is obtained under the conditions of 30 times/min of the circulation frequency.Performance measurement result is as shown in table 4.
Mechanical property after 4 embodiment coil of strip (plate) of table is quenched
From embodiment and the result of comparative example:Using the method for the present invention, brake rim hot continuous rolling can be significantly improved The intensity level of alloy-steel plate and low fatigue behaviour.

Claims (7)

1. high abrasion brake rim hot continuous rolling alloy-steel plate, it is characterised in that constituent is:By weight percentage, C: 0.30~0.40%, Si:0.20~0.35%, Mn:0.70~0.95%, Cr:0.90~1.05%, P:≤ 0.020%, S:≤ 0.010%, Mo:0.25~0.35%, Ni:0.08~0.15%, Ti:≤ 0.015%, remaining for Fe and inevitably it is miscellaneous Matter.
2. high abrasion brake rim hot continuous rolling alloy-steel plate according to claim 1, it is characterised in that constituent is: By weight percentage, C:0.31~0.38%, Si:0.22~0.30%, Mn:0.75~0.80%, Cr:0.95~ 1.02%, P:≤ 0.018%, S:≤ 0.010%, Mo:0.28~0.31%, Ni:0.10~0.15%, Ti:0.008~ 0.015%, remaining is Fe and inevitable impurity.
3. the production method of the high abrasion brake rim hot continuous rolling alloy-steel plate described in claim 1 or 2, it is characterised in that bag Include following steps:Desulfurizing iron-converter smelting top-bottom blowing-dephosphorization, deoxidation, alloying-chain-wales Argon-LF electrical heating, two Secondary alloying-RH application of vacuum-hello calcium line-continuous casting-heating of plate blank-high-pressure water descaling-roughing-Coil Box batches-finish rolling-laminar flow Cool down-batch-packaging and storage;The slab heating temperature is 1180~1230 DEG C.
4. the production method of high abrasion brake rim hot continuous rolling alloy-steel plate according to claim 3, it is characterised in that:Institute State roughing and use 5 passages or 7 passes, every time deflection >=20%.
5. the production method of high abrasion brake rim hot continuous rolling alloy-steel plate according to claim 3, it is characterised in that:Institute Workpiece thickness is more than 4 times of finished product thickness when stating roughing.
6. the production method of high abrasion brake rim hot continuous rolling alloy-steel plate according to claim 3, it is characterised in that:Institute Entry temperature at finishing is stated as 970~1020 DEG C, finish rolling finishing temperature is 830~880 DEG C.
7. the production method of high abrasion brake rim hot continuous rolling alloy-steel plate according to claim 3, it is characterised in that:Essence Cooled down after rolling using the sparse type of cooling of laminar flow.
CN201711181471.7A 2017-11-23 2017-11-23 High abrasion brake rim hot continuous rolling alloy-steel plate and its production method CN107904491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711181471.7A CN107904491A (en) 2017-11-23 2017-11-23 High abrasion brake rim hot continuous rolling alloy-steel plate and its production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711181471.7A CN107904491A (en) 2017-11-23 2017-11-23 High abrasion brake rim hot continuous rolling alloy-steel plate and its production method

Publications (1)

Publication Number Publication Date
CN107904491A true CN107904491A (en) 2018-04-13

Family

ID=61847446

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711181471.7A CN107904491A (en) 2017-11-23 2017-11-23 High abrasion brake rim hot continuous rolling alloy-steel plate and its production method

Country Status (1)

Country Link
CN (1) CN107904491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109236899A (en) * 2018-10-29 2019-01-18 温州市钢泰冲压件有限公司 A kind of high-strength brake block steel back and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103194688A (en) * 2013-03-28 2013-07-10 宝山钢铁股份有限公司 Wear-resistant steel pipe and manufacture method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103194688A (en) * 2013-03-28 2013-07-10 宝山钢铁股份有限公司 Wear-resistant steel pipe and manufacture method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109236899A (en) * 2018-10-29 2019-01-18 温州市钢泰冲压件有限公司 A kind of high-strength brake block steel back and preparation method thereof
CN109236899B (en) * 2018-10-29 2020-05-08 温州市钢泰冲压件有限公司 High-strength brake pad steel backing and preparation method thereof

Similar Documents

Publication Publication Date Title
CN106319368B (en) A kind of economical thin carrier bar and its manufacture method
US6024808A (en) Seamless steel pipe manufacturing method and equipment
CN104630641B (en) 800MPa-grade high-strength high-plasticity low-carbon medium-manganese steel and manufacturing method thereof
CN101082107B (en) Ultra-low carbon cold-rolling deep-punching glassed steel and method of production
EP0101740B2 (en) Process for manufacturing cold-rolled steel having excellent press moldability
CN100443201C (en) Surface iron scale control method for middle sheet billet continuous casting and rolling steel plate
US20160017449A1 (en) 700MPA-Level High-Strength Hot Rolling Q&P Steel And Method Of Manufacturing The Same
CN101379207B (en) Steel plate having excellent fine blanking processability and method for manufacture thereof
CN100494460C (en) Leveler roll and manufacturing process thereof
CN101805873B (en) Low-cost and high-strength steel for automobile crossbeam and manufacturing method thereof
CN102174683B (en) Method for producing cold-rolling low-carbon aluminum killed steel with uniform through plate mechanical property
CN101386124B (en) Medium and heavy plate production technique and special production line thereof
TWI481730B (en) A steel sheet
CN102108469B (en) Hot rolling hot straightening roll suitable for thick steel plates with thickness of less than or equal to 60mm and preparation method thereof
CN103757544A (en) Economical non-quenched and non-tempered micro-alloyed plastic die steel plate and making method thereof
CN101649418B (en) Ferrite stainless steel cold-rolled steel band and manufacturing method thereof
CN105018835B (en) Medium-high carbon hot rolled strip steel with excellent fine blanking performance and production method
CN101560629B (en) Hot rolling strip steel having yield strength being higher than 800MPa and preparation method thereof
CN101376944B (en) High-strength high-tensile ratio cold-rolled steel sheet and manufacturing method thereof
CN100575527C (en) A kind of thin belt continuous casting austenitic stainless steel belt and manufacture method thereof
KR101476866B1 (en) Low density steel with good stamping capability
RU2680486C1 (en) Hot stamping method and product produced therewith
CN103882202B (en) The manufacture method of the high-strength hot-galvanized steel of a kind of continuous annealing
CN104946969B (en) Hot-rolled pickled steel plate for air conditioner compressor housings and manufacturing method thereof
CN106498293B (en) A kind of preparation method of hot forming high-carbon hot continuous rolling pickling steel band

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20180413