CN107584253A - One kind is based on composite rolling wear resistant cutters material and its preparation technology - Google Patents
One kind is based on composite rolling wear resistant cutters material and its preparation technology Download PDFInfo
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- CN107584253A CN107584253A CN201710871630.XA CN201710871630A CN107584253A CN 107584253 A CN107584253 A CN 107584253A CN 201710871630 A CN201710871630 A CN 201710871630A CN 107584253 A CN107584253 A CN 107584253A
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- rolling
- composite
- wear resistant
- preparation technology
- resistant cutters
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- 239000002131 composite material Substances 0.000 title claims abstract description 57
- 238000005096 rolling process Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 5
- 238000007669 thermal treatment Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910019582 Cr V Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010054949 Metaplasia Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The present invention relates to one kind be based on composite rolling wear resistant cutters material and its preparation technology, and wear resistant cutters material sequentially carries out rolling according to stacking of reducing successively of hardness by three layers of monometallic material and formed；Preparation technology includes selection, surface preparation, assembly, weldering base, vacuumizes, Rolling compund base, strengthens process of thermal treatment step, and selection is raw material from three layers of monometallic material of different hardness；The order that stacks for three layers of monometallic material that assembly reduces successively according to hardness carries out closing base acquisition metal level composite；The requirement that can meet high intensity, high tenacity, high-wearing feature etc. simultaneously based on composite rolling wear resistant cutters material of the present invention, and it has self-sharpening blade function；Composite rolling technique reduces production cost to greatest extent, while improves the utilization rate of metal material.
Description
Technical field
The invention belongs to technical field of composite preparation, more particularly to it is a kind of based on composite rolling wear resistant cutters material and
Its preparation technology.
Background technology
The key position of farm machinery all be unable to do without cutter at present, such as the ploughshare commonly used in farming, hay mover when hoeing up weeds,
Harvester during autumn harvest etc., but agricultural cutter is easily damaged during long-time use, makes the operating efficiency of farm machinery
Reduce, and then influence the development of whole agricultural.
Current agricultural cutter both domestic and external is still based on monometallic material, domestic cutter generally existing hardness, wearability
Not high, the problem of service life is shorter, Chang Yinwei serious wears and can not be continuing with completely；And the cutter of import makes at home
Used time due in arable land the debris such as stone, metal it is more, cutter property itself is crisp, mostly occurs and forges a knife phenomenon and influence to use.Every time
It is cumbersome and time consuming to change cutter, has a strong impact on operating efficiency.
Compared with monometallic material, composite is provided simultaneously with the optimum performance of basic unit and clad material, can expire simultaneously
The requirement of sufficient high intensity, high tenacity, high-wearing feature etc., while saving production cost, the utilization rate of each metal material significantly carries
It is high.Therefore, the composite for preparing wear resistant cutters is significant.
The process that tradition prepares composite the part such as is typically prepared by powder, shaped, sintered and forming, these techniques
Not only the requirement to production equipment and environment is very strict for flow, and production cost is high, efficiency is low, and pollution problem is also very tight
Weight.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides one kind based on composite rolling wear resistant cutters material and its prepares work
Skill, the complex cutter material of preparation has obdurability, high-wearing feature, and it has self-sharpening blade function, can effectively overcome above-mentioned
The shortcomings that prior art is present.
The present invention is achieved through the following technical solutions, and one aspect of the present invention provides one kind and is based on the resistance to sharpening of composite rolling
Have material, the wear resistant cutters material by three layers of monometallic material according to hardness reduce successively stack order rolled and
Into.
Preferably, the steel of three layers of monometallic material selection, tri- kinds of different hardness of GCr15, Q420 and IF, hardness number
Reduce successively.
Another aspect of the present invention provides a kind of preparation technology based on composite rolling wear resistant cutters material, including following work
Skill step：
1) selection：Selection is raw material from three layers of monometallic material of different hardness；It is determined that required three-layer metal raw material
Material and specification, and finally determine composite billet size and rolling size；
2) surface preparation：It will be polished after the three-layer metal material cutting of selection or cutting in face to be composite；Remove
The oxide layer of metal surface to be composite, grease etc. influence compound harmful substance, it is exposed fresh metal, bruting process can adopt
By hand or mechanical system is carried out；
3) assembly：The order that stacks of the three layers of monometallic material reduced successively according to hardness carries out conjunction base；
4) base is welded：After three layers of monometallic material are overlapped, the four edges for being incorporated into face carry out soldering；Prevent from heating
When compound interface be oxidized；
5) vacuumize：Into composite billet after the completion of welding, to being vacuumized between composite billet faying face；
6) Rolling compund base：Heating technique with stove is carried out to composite billet, is then rolled using hot-rolling mill, finally adopted
Rolled with the rolling procedure of six passages；
7) heat treatment is strengthened：Intensive treatment is carried out to composite using high-frequency quenching and lonneal.It is set to obtain institute
The mechanical property needed.
Wear resistant cutters material is formed by three layers of monometallic Material cladding rolling of different hardness, with making for daily cutter
With the relatively low metal level of hardness is gradually worn down and come off because wearability is relatively weak, goes round and begins again, the different degrees of wear
Cause cutting edge the more to grind the more sharp, reach the effect of self-sharpening blade.
Preferably, needing to clear up the face to be composite of all metal levels before the assembly, then carry out at drying
Reason.Remove the dirts such as dust, greasy dirt and the oxide layer of face residual to be composite.
Preferably, it is described vacuumize concretely comprise the following steps：Drilled in two diagonal angles of composite billet rolling direction,
Reserved vacuum exhaust pipe, using vaccum-pumping equipment to being vacuumized between composite billet faying face, is finally sealed to composite billet
Stifled, sealing.
1250 DEG C are heated to preferably, composite billet is put into resistance-type heating furnace during the Rolling compund base, insulation
90 minutes.
Preferably, being rolled during the Rolling compund base using 550 Hot Rolling Mills, maximum draught pressure is no more than
4000kN。
Preferably, reduction ratio is respectively 29%, 30% in the rolling procedure of six passages during the Rolling compund base,
29%, 31%, 22%, 17%, total reduction 85%.
Preferably, it is 1.5m/s to roll speed during the Rolling compund base in the rolling procedure of six passages.
The present invention has the advantages that compared with the prior art：
Compared with the method for traditional mode of production composite, composite rolling can carry out continuous production, and product size is accurate,
The thickness of each constituent element is uniform, stable performance；The physical dimension of method hot rolling blank can make to measure according to personalization, so as to most
The utilization rate for improving to limits material reduces unnecessary inventory loss, and production cost is low, efficiency high, and suitable for the gold of composite rolling
Category is very more, it is easy to accomplish technical scale metaplasia is produced；Composite rolling technique without black smoke, noise and the harm of vibration, belong to cleaning,
Green technology.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is further described with reference to specific embodiment.
The present embodiment is related to a kind of rolling GCr15/Q420/IF composite blanks and its preparation technology.
According to the specification of wear resistant cutters, design is 6mm from GCr15 raw thicknesses, and Q420 raw thicknesses are
11.7mm, IF raw thickness are 17.5mm, and composite billet thickness is 35.2mm, and rolling target thickness is 5mm.Wherein used in composite billet
The specific composition of three kinds of steel is referring to table 1.
Table 1
| C | Mn | Si | P | S | Cr | V | Al | |
| GCr15 | 0.956 | 0.293 | 0.240 | 0.014 | 0.0038 | 1.45 | 0.0052 | 0.0018 |
| Q420 | 0.051 | 1.90 | 0.321 | 0.0099 | 0.0060 | 0.373 | 0.006 | 0.025 |
| IF | 0.0041 | 0.130 | 0.0045 | 0.0095 | 0.0068 | 0.12 | 0.0025 | 0.0465 |
By qualified metal level raw material cut or cutting after, the greasy dirt on surface and drying are removed using acetone, then with grinding
Bed eliminates the iron scale of surface of steel plate, until exposing fresh metal, drying and processing is then carried out, finally according to GCr15-
The Q420-IF order that stacks carries out conjunction base.
Three-layer metal layer is overlapped and clamped, surrounding beats 45° angle groove, and the four edges for being then incorporated into face are carried out
Soldering, prevent that compound interface aoxidizes during heating.In order to ensure in welding process and welding after weld seam do not ftracture, its fusion penetration during welding
It is it is required that unsuitable too low with weld width.After the completion of welding, drilled, reserved true in two diagonal angles of composite billet rolling direction
Empty exhaust tube, using vaccum-pumping equipment to being vacuumized between composite billet faying face, finally composite billet is blocked, be close
Envelope.
Composite billet is put into resistance-type heating furnace and is heated to 1250 DEG C, 90 minutes are incubated, then using 550 Hot Rolling Mills
Rolled, maximum draught pressure is no more than 4000kN, and using the rolling procedure of six passages, six percentage pass reductions are respectively
29%, 30%, 29%, 31%, 22%, 17%, total reduction 85%, rolling speed is 1.5m/s.
After the completion of being rolled according to technological process, intensive treatment is carried out to composite blank using high-frequency quenching and lonneal,
Make the mechanical property needed for acquisition.
Material prepared by this composite rolling, the monometallic raw material of selection is respectively GCr15, Q420, IF, but of the invention
The composite billet size of this preparation is not limited solely to, can be adjusted according to being actually needed, select other suitable materials
And size, meet the needs of different.
Certainly, described above is also not limited to the example above, the technical characteristic of the invention without description can by or
Realized, will not be repeated here using prior art；It is not to this that above example, which is merely to illustrate technical scheme,
The limitation of invention, the present invention is described in detail with reference to preferred embodiment, one of ordinary skill in the art should
Understand, the variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the present invention
Without departure from spirit of the invention, it should also belong to claims of the invention.
Claims (10)
1. one kind is based on composite rolling wear resistant cutters material, it is characterised in that：The wear resistant cutters material is by three layers of monometallic material
The order that stacks that material reduces successively according to hardness carries out rolling and formed.
2. one kind according to claim 1 is based on composite rolling wear resistant cutters material, it is characterised in that：Three layers of Dan Jin
Belong to the steel of material selection tri- kinds of different hardness of GCr15, Q420 and IF, hardness number reduces successively.
3. a kind of preparation technology based on composite rolling wear resistant cutters material according to claim 1, including following technique
Step：1) selection；2) surface preparation；3) assembly；4) base is welded；5) vacuumize；6) Rolling compund base；7) heat treatment is strengthened；Its
It is characterised by：Selection is raw material from three layers of monometallic material of different hardness；Three layers of list that assembly reduces successively according to hardness
The order that stacks of metal material carries out conjunction base.
A kind of 4. preparation technology based on composite rolling wear resistant cutters material according to claim 3, it is characterised in that：Institute
The heating technique with stove is carried out to the composite billet obtained after vacuumizing when stating Rolling compund base, then rolled using hot-rolling mill
System, is finally rolled using the rolling procedure of six passages.
A kind of 5. preparation technology based on composite rolling wear resistant cutters material according to claim 3, it is characterised in that：
Need to clear up the face to be composite of all metal levels before the assembly, then carry out drying and processing.
A kind of 6. preparation technology based on composite rolling wear resistant cutters material according to claim 3, it is characterised in that：Institute
State concretely comprising the following steps of vacuumizing：Drilled in two diagonal angles of composite billet rolling direction, reserve vacuum exhaust pipe, used
Vaccum-pumping equipment is finally blocked to composite billet, sealed to being vacuumized between composite billet faying face.
A kind of 7. preparation technology based on composite rolling wear resistant cutters material according to claim 4, it is characterised in that：Institute
Composite billet is put into resistance-type heating furnace when stating Rolling compund base and is heated to 1250 DEG C, is incubated 90 minutes.
A kind of 8. preparation technology based on composite rolling wear resistant cutters material according to claim 4, it is characterised in that：Institute
Rolled when stating Rolling compund base using 550 Hot Rolling Mills, maximum draught pressure is no more than 4000kN.
A kind of 9. preparation technology based on composite rolling wear resistant cutters material according to claim 4, it is characterised in that：Institute
Reduction ratio is respectively 29%, 30%, 29%, 31%, 22%, 17% in the rolling procedure of six passages when stating Rolling compund base, always
Reduction ratio is 85%.
A kind of 10. preparation technology based on composite rolling wear resistant cutters material according to claim 4, it is characterised in that：
It is 1.5m/s to roll speed during the Rolling compund base in the rolling procedure of six passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871630.XA CN107584253B (en) | 2017-09-25 | 2017-09-25 | One kind being based on composite rolling wear resistant cutters material and its preparation process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710871630.XA CN107584253B (en) | 2017-09-25 | 2017-09-25 | One kind being based on composite rolling wear resistant cutters material and its preparation process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248604A (en) * | 2020-10-22 | 2021-01-22 | 辽宁孚胜金属复合板有限公司 | Manufacturing method of novel stainless steel composite board |
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| CN105543649A (en) * | 2015-12-14 | 2016-05-04 | 宝山钢铁股份有限公司 | Three-layer composite steel plate and manufacturing method thereof |
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2017
- 2017-09-25 CN CN201710871630.XA patent/CN107584253B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| JP2010255099A (en) * | 2009-03-31 | 2010-11-11 | Jfe Steel Corp | Method for manufacturing bearing-component excellent in rolling fatigue characteristics under foreign matter environment |
| CN102039698A (en) * | 2009-10-21 | 2011-05-04 | 宝山钢铁股份有限公司 | Tri-metal material and manufacturing method thereof |
| CN101724788A (en) * | 2009-12-18 | 2010-06-09 | 北京科技大学 | High-vanadium steel wear resistant material and preparation method thereof |
| CN102179673A (en) * | 2011-05-11 | 2011-09-14 | 大连沈特电缆有限公司 | Production process for rolling double-sided stainless steel composite thin strip by explosion cladding |
| CN103507325A (en) * | 2012-06-28 | 2014-01-15 | 浙江兆隆合金股份有限公司 | Non-magnetic high-elasticity copper-steel composite plate and production method thereof |
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| 何泽华: ""我国轧制方法生产层状金属复合材料的研究现状"", 《大众科技》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112248604A (en) * | 2020-10-22 | 2021-01-22 | 辽宁孚胜金属复合板有限公司 | Manufacturing method of novel stainless steel composite board |
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