CN107584253B - One kind being based on composite rolling wear resistant cutters material and its preparation process - Google Patents
One kind being based on composite rolling wear resistant cutters material and its preparation process Download PDFInfo
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- CN107584253B CN107584253B CN201710871630.XA CN201710871630A CN107584253B CN 107584253 B CN107584253 B CN 107584253B CN 201710871630 A CN201710871630 A CN 201710871630A CN 107584253 B CN107584253 B CN 107584253B
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- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 238000005096 rolling process Methods 0.000 title claims abstract description 47
- 239000000463 material Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 6
- 238000001035 drying Methods 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
- 229910052729 chemical element Inorganic materials 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 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
- 238000005253 cladding Methods 0.000 description 2
- 238000005516 engineering process Methods 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
- 244000025254 Cannabis sativa Species 0.000 description 1
- 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
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
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- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect 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
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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- 238000004321 preservation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- 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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Abstract
The present invention relates to one kind to be based on composite rolling wear resistant cutters material and its preparation process, and wear resistant cutters material roll according to the sequence that stacks that hardness successively reduces by three layers of monometallic material；Preparation process includes selection, surface preparation, assembly, weldering base, vacuumizes, Rolling compund base, strengthens process of thermal treatment step, and it is raw material that three layers of monometallic material of different hardness are selected in selection；The sequence that stacks for three layers of monometallic material that assembly is successively reduced according to hardness carries out closing base acquisition metal layer composite material；The requirement that can meet high intensity, high tenacity, high-wearing feature etc. simultaneously based on composite rolling wear resistant cutters material of the invention, and it has the function of self-sharpening blade；Composite rolling technique reduces production cost to the maximum extent, while improving 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 process.
Background technique
The key position of farm machinery all be unable to do without cutter at present, such as ploughshare common in farming, grass trimmer when hoeing up weeds,
Harvester when autumn harvest etc., but agricultural cutter is easily damaged in long-time use process, makes the working efficiency of farm machinery
It reduces, and then influences the development of entire agricultural.
Current agricultural cutter both domestic and external is still based on monometallic material, the generally existing hardness of domestic cutter, wearability
Problem not high, service life is shorter, Chang Yinwei serious wear and cannot be used continuously completely；And the cutter of import makes at home
Used time due in ploughing the sundries such as stone, metal it is more, cutter itself property is crisp, mostly occurs and forges a knife phenomenon and influence to use.Every time
It is cumbersome and time consuming to replace cutter, seriously affects working efficiency.
Compared with monometallic material, composite material is provided simultaneously with the optimum performance of base and cladding material, can expire simultaneously
The requirement of foot high intensity, high tenacity, high-wearing feature etc., while saving production cost, the utilization rate of each metal material is significantly mentioned
It is high.Therefore, the composite material for preparing wear resistant cutters is significant.
The process that tradition prepares composite material is generally made of parts such as powder preparation, forming, sintering, these techniques
Requirement of the process not only to production equipment and environment is very strict, but also high production cost, low efficiency, and pollution problem is also very tight
Weight.
Summary of the invention
In order to solve the above technical problem, the present invention provides one kind based on composite rolling wear resistant cutters material and its preparation work
The complex cutter material of skill, preparation has obdurability, high-wearing feature, and it has the function of self-sharpening blade, can effectively overcome above-mentioned
Disadvantage of the existing technology.
The present invention is achieved through the following technical solutions, and one aspect of the present invention provides a kind of 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 successively reduce stack sequence rolled and
At.
Preferably, the steel of three layers of monometallic material selection, tri- kinds of different hardness of GCr15, Q420 and IF, hardness number
Successively reduce.
Another aspect of the present invention provides a kind of preparation process based on composite rolling wear resistant cutters material, including following work
Skill step:
1) selection: it is raw material that three layers of monometallic material of different hardness are selected in selection；Three-layer metal raw material needed for determining
Material and specification, and finally determine composite billet size and rolling size；
2) it surface preparation: will polish after the three-layer metal material cutting of selection or cutting in face to be composite；Removal
Oxide layer, grease of metal surface to be composite etc. influence compound harmful substance, it is made to expose fresh metal, and bruting process can adopt
By hand or mechanical system carries out；
3) assembly: the sequence that stacks of the three layers of monometallic material successively reduced according to hardness carries out conjunction base；
4) weld base: after three layers of monometallic material are overlapped, the four edges for being incorporated into face carry out soldering；It prevents from heating
When compound interface be oxidized；
5) it vacuumizes: at composite billet after the completion of welding, being vacuumized between composite billet faying face；
6) Rolling compund base: the heating process with furnace is carried out to composite billet, is then rolled using hot-rolling mill, is finally adopted
It is rolled with the rolling procedure of six passages；
7) strengthen heat treatment: intensive treatment is carried out to composite material using high-frequency quenching and lonneal.It is set to obtain institute
The mechanical property needed.
Wear resistant cutters material is rolled by three layers of monometallic Material cladding of different hardness, with making for daily cutter
With, the lower metal layer of hardness is gradually worn down and falls off since wearability is relatively weak, in cycles, the different degrees of wear
Cause cutting edge the more to grind the more sharp, achievees the effect that self-sharpening blade.
Preferably, needing to clear up the face to be composite of all metal layers before the assembly, then carry out at drying
Reason.Remove the dirts such as the remaining dust in face to be composite, greasy dirt and oxide layer.
Preferably, the specific steps vacuumized are as follows: it drills in two diagonal angles of composite billet rolling direction,
Reserved vacuum exhaust pipe, is vacuumized between composite billet faying face using vaccum-pumping equipment, is finally sealed to composite billet
Stifled, sealing.
1250 DEG C are heated to preferably, composite billet is put into resistance-type heating furnace when the Rolling compund base, heat preservation
90 minutes.
Preferably, being rolled when 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 when the Rolling compund base,
29%, 31%, 22%, 17%, total reduction 85%.
Preferably, rolling rate when the Rolling compund base in the rolling procedure of six passages is 1.5m/s.
The present invention has the advantages that compared with the prior art
Compared with the method for traditional mode of production composite material, composite rolling can carry out continuous production, and product size is accurate,
The thickness of each constituent element is uniform, and performance is stablized；The geometric dimension of method hot rolling blank can make to measure according to personalization, thus most
The utilization rate for improving to limits material reduces extra inventory loss, and production cost is low, high-efficient, and is suitable for the gold of composite rolling
Belong to very more, it is easy to accomplish technical scale metaplasia produces；Composite rolling technique without black smoke, noise and the harm of vibration, belong to cleaning,
Environmental protection technology.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention 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.
Application principle of the invention is further described combined with specific embodiments below.
The present embodiment is related to a kind of rolling GCr15/Q420/IF composite blank and its preparation process.
According to the specification of wear resistant cutters, it is 6mm that GCr15 raw thickness is selected in design, and Q420 raw thickness is
11.7mm, IF raw thickness are 17.5mm, and for composite billet with a thickness of 35.2mm, rolling target thickness is 5mm.Wherein used in composite billet
The specific ingredient 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 layer raw material cut or cutting after, remove the greasy dirt on surface and drying 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 sequence that stacks of Q420-IF 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 carry out
Soldering prevents compound interface when heating from aoxidizing.In order to guarantee in welding process and welding after weld seam do not crack, its fusion penetration when welding
It is required that unsuitable too low with weld width.It after the completion of welding, drills, reserves true in two diagonal angles of composite billet rolling direction
Empty pump tracheae is vacuumized between composite billet faying face using vaccum-pumping equipment, is finally blocked to composite billet, is close
Envelope.
Composite billet is put into resistance-type heating furnace and is heated to 1250 DEG C, keeps the temperature 90 minutes, then uses 550 Hot Rolling Mills
It is 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 rate is 1.5m/s.
After the completion of rolling according to process flow, intensive treatment is carried out to composite blank using high-frequency quenching and lonneal,
Make to obtain required mechanical property.
The material of this composite rolling preparation, the monometallic raw material of selection is respectively GCr15, Q420, IF, but of the invention
It is not limited solely to the composite billet size of this preparation, can be adjusted according to actual needs, select other suitable materials
And size, meet the needs of different.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；It is not to this that the above examples are only used to illustrate the technical scheme of the present invention
The limitation of invention, describes the invention in detail referring to preferred embodiment, and those skilled in the art should
Understand, the variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention
Without departure from spirit of the invention, it also should belong to claims of the invention.
Claims (5)
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
Material roll according to the sequence that stacks that hardness successively reduces；Described three layers of monometallic material selection GCr15, Q420 and IF
The steel of three kinds of different hardness, hardness number successively reduce；
The thickness ratio of the steel of tri- kinds of different hardness of GCr15, Q420 and IF is 6:11.7:17.5；
The mass percent of the chemical element contained in the GCr15 steel are as follows:
C:0.956%, Mn:0.293%, Si:0.240%, P:0.014%, S:0.0038%, Cr:1.45%, V:
0.0052%, Al:0.0018%；
The mass percent of the chemical element contained in the Q420 steel are as follows:
C:0.051%, Mn:1.90%, Si:0.321%, P:0.0099%, S:0.0060%, Cr:0.373%, V:
0.006%, Al:0.025%；
The mass percent of the chemical element contained in the IF steel are as follows:
C:0.0041%, Mn:0.130%, Si:0.0045%, P:0.0095%, S:0.0068%, Cr:0.12%, V:
0.0025%, Al:0.0465%.
2. a kind of preparation process 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) it vacuumizes；6) Rolling compund base；7) strengthen heat treatment；Its
Be characterized in that: it is raw material that three layers of monometallic material of different hardness are selected in selection；Three layers of list that assembly is successively reduced according to hardness
The sequence that stacks of metal material carries out conjunction base；When the Rolling compund base is carried out to the composite billet obtained after vacuumizing adding with furnace
Then thermal process is rolled using hot-rolling mill, finally rolled using the rolling procedure of six passages；The Rolling compund base
When six passages rolling procedure in reduction ratio be respectively 29%, 30%, 29%, 31%, 22%, 17%, total reduction 85%；
The specific steps vacuumized are as follows: drill in two diagonal angles of composite billet rolling direction, reserve vacuum suction
Pipe, is vacuumized between composite billet faying face using vaccum-pumping equipment, is finally blocked, sealed to composite billet；
Composite billet is put into resistance-type heating furnace when the Rolling compund base and is heated to 1250 DEG C, keeps the temperature 90 minutes.
3. a kind of preparation process based on composite rolling wear resistant cutters material according to claim 2, it is characterised in that: In
It needs to clear up the face to be composite of all metal layers before the assembly, then carries out drying and processing.
4. a kind of preparation process based on composite rolling wear resistant cutters material according to claim 2, it is characterised in that: institute
It is rolled when stating Rolling compund base using 550 Hot Rolling Mills, maximum draught pressure is no more than 4000kN.
5. a kind of preparation process based on composite rolling wear resistant cutters material according to claim 2, it is characterised in that: institute
Rolling rate when stating Rolling compund base in the rolling procedure of six passages is 1.5m/s.
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| 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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|---|---|---|---|---|
| CN101724788A (en) * | 2009-12-18 | 2010-06-09 | 北京科技大学 | High-vanadium steel wear resistant material and preparation method thereof |
| 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 |
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2017
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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| "我国轧制方法生产层状金属复合材料的研究现状";何泽华;《大众科技》;20160430;全文 * |
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