CN107671513A - A kind of manufacture method of wear-resisting hot shears alloy blade - Google Patents
A kind of manufacture method of wear-resisting hot shears alloy blade Download PDFInfo
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- CN107671513A CN107671513A CN201710886459.XA CN201710886459A CN107671513A CN 107671513 A CN107671513 A CN 107671513A CN 201710886459 A CN201710886459 A CN 201710886459A CN 107671513 A CN107671513 A CN 107671513A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/28—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
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Abstract
The invention discloses a kind of manufacture method of wear-resisting hot shears alloy blade, it is related to tooling cost field.The present invention includes preparation hot shear blade raw material, rough annealing processing, blank slightly machines, blade Quenching Treatment, blade temper, blade finish；The percentage by weight of blank each component is：C：5.82%；Mn：0.36%；S：0.032%；P：0.028%；Cr：3.95%；Ni：0.26%；V：2.09%；Mo：5.36%；W：5.89%；V：1.97%；B：0.034%；Remaining is Fe.Content accounting of the invention by adjusting C and Cr in blank, it is heat-treated during tool sharpening, improve the ability that cutter keeps hardness, wearability, intensity and toughness at high temperature, raising cutter bears compression shock and toughness in cutting, reduction is collapsed knife and fractureed, and ensures that cutter material has enough intensity and toughness.
Description
Technical field
The invention belongs to tooling cost field, more particularly to a kind of manufacture method of wear-resisting hot shears alloy blade.
Background technology
The quality of Tool in Cutting performance, depending on forming material, geometry and the cutter structure of blades of cutting tools.Knife
Tool material all has a significant impact to cutter life, processing efficiency, crudy and processing cost etc., therefore to pay attention to cutter
The correct selection of material and and reasonable employment.Cutter material is higher than workpiece material hardness, and normal temperature hardness is in more than HRC62；It is resistance to
Mill property represents the ability of resistance abrasion, and it depends on hardness, quantity and the distribution of Hard Inclusion in tissue.In order to bear in cutting
Compression shock and toughness, avoid collapsing knife and fracture, cutter material should have enough intensity and toughness.Cutter material is at high temperature
Keep the ability of hardness, wearability, intensity and toughness low.For the ease of manufacture, it is desirable to which cutter material has preferable machinability.
Such as machinability, castability, forgeability and heat-treatability, therefore it provides a kind of manufacturer of wear-resisting hot shears alloy blade
Method, improve the performance of cutter.
The content of the invention
It is an object of the invention to provide a kind of manufacture method of wear-resisting hot shears alloy blade, pass through reasonable selection cutter material
Material, rational proportion is carried out to the material of cutter, is heat-treated during tool sharpening, solves existing cutter at high temperature
The problem of keeping hardness, wearability, low intensity and tough sexuality.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions：
The present invention is a kind of manufacture method of wear-resisting hot shears alloy blade, is comprised the following steps：
Step 1, prepare hot shear blade raw material：Cylinder type metal blank is cut into semicylinder shape blank, then will be partly
Cylindrical shape blank carries out high temperature forging；The high temperature forging step is as follows：Semicylinder shape blank is put into heating furnace and added
For heat to 1200~1250 DEG C, programming rate is 15~18 DEG C/min；Insulation 100~120 minutes；It is incubated semicylinder after coming out of the stove
Shape blank forging is blank；
Step 2, rough annealing is handled：Blank in step 1 is loaded into annealing furnace and is warming up to 300~310 DEG C, its liter
Warm speed is 5~7 DEG C/min, is incubated 30~35 minutes；With 8~10 DEG C/min heating rate, 610~650 DEG C are warming up to, is protected
Temperature 18~22 minutes；With 10~15 DEG C/min heating rate, 890~920 DEG C are warming up to, is incubated 280 minutes；In the lehr
Air cooling is carried out after being cooled to 540~550 DEG C；
Step 3, to the thick machining of blank：Gained blank in step 2 is cut into two along the lateral side wire of its cylindrical blank
Individual size identical woollen；Woollen after wire cutting is cut into two blades, and mounting hole is opened up on blade；
Step 4, to blade Quenching Treatment：(1) blade obtained by step 3 is put into batch-type furnace and is warming up to 830~850
DEG C, its heating rate is 18~25 DEG C/min, is incubated 180~200 minutes；Cool to 500~520 DEG C after insulation with the furnace, come out of the stove
Air cooling；(2) industrial sodium nitrite is added in nitrate furnace and is warming up to 1080~1090 DEG C with 5~8 DEG C/min heating rate,
Blade obtained by step (1) is put into nitrate furnace, continues to be heated to 1200~1250 DEG C in nitrate furnace, and be incubated 13~18 points
Clock；(3) gained blade in step (2) is taken out, is put into quenching oil quenching, the residence time in quenching oil is 15~20 points
Clock；
Step 5, to blade temper：Blade after quenching is put into nitrate furnace and is tempered, the industry in nitrate furnace is sub-
Sodium nitrate was warming up to 580~585 DEG C in 3~3.5 hours, and blade is air-cooled to room in nitrate furnace inside holding 190~200 minutes
Temperature；The hardness number of blade is detected after tempering, hardness number is controlled in 60~65HRC；
Step 6, blade is finished：Blade clamping obtained by step 5 is finished on surface grinding machine, obtains knife
Piece finished product.
Further, the percentage by weight of blank each component is：C：5.23~6.15%；Mn：0.15~0.40%；S：
0.030~0.036%；P：0.02~0.030%；Cr：3.65~4.35%；Ni：0.03~0.30%；V：1.68~
2.23%；Mo：4.53~5.56%；W：5.51~6.77%；V：1.60~2.20%；B：0.027~0.038%；Remaining is
Fe and inevitable impurity.
Further, the percentage by weight of blank each component is：C：5.82%；Mn：0.36%；S：0.032%；P：
0.028%；Cr：3.95%；Ni：0.26%；V：2.09%；Mo：5.36%；W：5.89%；V：1.97%；B：0.034%；Its
Remaining is Fe and inevitable impurity.
The invention has the advantages that：
The present invention carries out rational proportion to the material of cutter, adjusts C and Cr in blank by reasonable selection cutter material
Content accounting, it is heat-treated during tool sharpening, improves cutter and keep hardness, wearability, intensity and toughness at high temperature
Ability, improve cutter and bear compression shock and toughness in cutting, reduce and collapse knife and the generation of accident of fractureing, ensure cutter material
Material has enough intensity and toughness.
Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.
Embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described,
Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention
Embodiment, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of protection of the invention.
The present invention is a kind of manufacture method of wear-resisting hot shears alloy blade, is comprised the following steps：
Step 1, prepare hot shear blade raw material：Cylinder type metal blank is cut into semicylinder shape blank, then will be partly
Cylindrical shape blank carries out high temperature forging；The high temperature forging step is as follows：Semicylinder shape blank is put into heating furnace and added
For heat to 1250 DEG C, programming rate is 15 DEG C/min；Insulation 115 minutes；It is hair to be incubated semicylinder shape blank forging after coming out of the stove
Base；The defects of metal caused as cast condition in smelting process is loose is eliminated, optimizes heterogeneous microstructure, while is saved complete
Metal streamline, improve the mechanical performance of blank；
Step 2, rough annealing is handled：Blank in step 1 is loaded into annealing furnace and is warming up to 300 DEG C, its speed that heats up
Rate is 5 DEG C/min, is incubated 35 minutes；With 8 DEG C/min heating rate, 650 DEG C are warming up to, is incubated 18 minutes；With 10 DEG C/min
Heating rate, be warming up to 900 DEG C, be incubated 280 minutes；Air cooling is carried out after being cooled to 550 DEG C in the lehr；Tissue is eliminated to lack
Fall into, improving tissue makes homogenization of composition and crystal grain thinning, improves the mechanical property of blank, reduces residual stress；Reduce simultaneously
The hardness of blank, improve the plasticity and toughness of blank；
Step 3, to the thick machining of blank：Gained blank in step 2 is cut into two along the lateral side wire of its cylindrical blank
Individual size identical woollen；Woollen after wire cutting is cut into two blades, and mounting hole is opened up on blade；
Step 4, to blade Quenching Treatment：
(1) blade obtained by step 3 is put into batch-type furnace and is warming up to 850 DEG C, its heating rate is 25 DEG C/min, insulation
180 minutes；Cool to 510 DEG C after insulation with the furnace, air cooling of coming out of the stove；(2) in nitrate furnace add industrial sodium nitrite and with 5 DEG C/
Min heating rate is warming up to 1080 DEG C, and the blade obtained by step (1) is put into nitrate furnace, continues to be heated in nitrate furnace
1200 DEG C, and it is incubated 15 minutes；(3) gained blade in step (2) is taken out, quenching oil quenching is put into, in quenching oil
Residence time is 15 minutes；Increase the intensity and hardness of blade, reduce blade plasticity；
Step 5, to blade temper：
Blade after quenching is put into nitrate furnace and is tempered, the industrial sodium nitrite in nitrate furnace was warming up in 3 hours
580 DEG C, blade is air-cooled to room temperature in nitrate furnace inside holding 190 minutes；The hardness number of blade, hardness number control are detected after tempering
In 60HRC；Temper is carried out to blade stage by stage, for hardness number per high 1HRC, temperature is higher than last temperature
10 DEG C, soaking time is 0.9 times of last tempering time, then air cooling；It is 65HRC finally to control blade stiffness value；Eliminate
Residual stress of the part caused by rapidly cooling down, improve the toughness and flexibility of cutter；
Step 6, blade is finished：
Blade clamping obtained by step 5 is finished on surface grinding machine, finished blade is obtained, ensures that blade reaches
Surface figure accuracy dimensional accuracy and surface roughness required for before polishing, machining accuracy control exist in IT5, surface roughness control
Ra0.05 microns.
Wherein, the percentage by weight of blank each component is：C：5.23~6.15%；Mn：0.15~0.40%；S：0.030
~0.036%；P：0.02~0.030%；Cr：3.65~4.35%；Ni：0.03~0.30%；V：1.68~2.23%；Mo：
4.53~5.56%；W：5.51~6.77%；V：1.60~2.20%；B：0.027~0.038%；Remaining is Fe and can not kept away
The impurity exempted from.
Wherein, the percentage by weight of blank each component is：C：5.82%；Mn：0.36%；S：0.032%；P：0.028%；
Cr：3.95%；Ni：0.26%；V：2.09%；Mo：5.36%；W：5.89%；V：1.97%；B：0.034%；Remaining be Fe and
Inevitable impurity.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
At least one implementation of the present invention is contained in reference to specific features, structure, material or the feature that the embodiment or example describe
In example or example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.
Moreover, specific features, structure, material or the feature of description can close in any one or more embodiments or example
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed
All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification,
It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention
Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only
Limited by claims and its four corner and equivalent.
Claims (3)
1. a kind of manufacture method of wear-resisting hot shears alloy blade, it is characterised in that comprise the following steps：
Step 1, prepare hot shear blade raw material：
Cylinder type metal blank is cut into semicylinder shape blank, then semicylinder shape blank is subjected to high temperature forging；It is described
High temperature forging step is as follows：
Semicylinder shape blank is put into heating furnace and is heated to 1200~1250 DEG C, programming rate is 15~18 DEG C/min；Protect
Temperature 100~120 minutes；It is blank to be incubated semicylinder shape blank forging after coming out of the stove；
Step 2, rough annealing is handled：
Blank in step 1 is loaded into annealing furnace and is warming up to 300~310 DEG C, its heating rate be 5~7 DEG C/min, is incubated 30
~35 minutes；With 8~10 DEG C/min heating rate, 610~650 DEG C are warming up to, is incubated 18~22 minutes；With 10~15 DEG C/
Min heating rate, 890~920 DEG C are warming up to, are incubated 280 minutes；Carried out after being cooled to 540~550 DEG C in the lehr empty
It is cold；
Step 3, to the thick machining of blank：
Lateral side wire of the gained blank along its cylindrical blank in step 2 is cut into two size identical woollens；By wire cutting
Woollen afterwards is cut into two blades, and mounting hole is opened up on blade；
Step 4, to blade Quenching Treatment：
(1) blade obtained by step 3 being put into batch-type furnace and is warming up to 830~850 DEG C, its heating rate is 18~25 DEG C/
Min, it is incubated 180~200 minutes；Cool to 500~520 DEG C after insulation with the furnace, air cooling of coming out of the stove；
(2) industrial sodium nitrite is added in nitrate furnace and is warming up to 1080~1090 DEG C with 5~8 DEG C/min heating rate,
Blade obtained by step (1) is put into nitrate furnace, continues to be heated to 1200~1250 DEG C in nitrate furnace, and be incubated 13~18 points
Clock；
(3) gained blade in step (2) is taken out, is put into quenching oil quenching, the residence time in quenching oil is 15~20
Minute；
Step 5, to blade temper：
Blade after quenching is put into nitrate furnace and is tempered, the industrial sodium nitrite in nitrate furnace was warming up in 3~3.5 hours
580~585 DEG C, blade is air-cooled to room temperature in nitrate furnace inside holding 190~200 minutes；The hardness number of blade is detected after tempering,
Hardness number is controlled in 60~65HRC；
Step 6, blade is finished：
Blade clamping obtained by step 5 is finished on surface grinding machine, obtains finished blade.
2. the manufacture method of a kind of wear-resisting hot shears alloy blade according to claim 1, it is characterised in that the blank is each
The percentage by weight of component is：C：5.23~6.15%；Mn：0.15~0.40%；S：0.030~0.036%；P：0.02~
0.030%；Cr：3.65~4.35%；Ni：0.03~0.30%；V：1.68~2.23%；Mo：4.53~5.56%；W：5.51
~6.77%；V：1.60~2.20%；B：0.027~0.038%；Remaining is Fe and inevitable impurity.
3. the manufacture method of a kind of wear-resisting hot shears alloy blade according to claim 2, it is characterised in that the blank is each
The percentage by weight of component is：C：5.82%；Mn：0.36%；S：0.032%；P：0.028%；Cr：3.95%；Ni：
0.26%；V：2.09%；Mo：5.36%；W：5.89%；V：1.97%；B：0.034%；Remaining be Fe and inevitably it is miscellaneous
Matter.
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| CN201710886459.XA CN107671513A (en) | 2017-09-27 | 2017-09-27 | A kind of manufacture method of wear-resisting hot shears alloy blade |
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| CN201710886459.XA CN107671513A (en) | 2017-09-27 | 2017-09-27 | A kind of manufacture method of wear-resisting hot shears alloy blade |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747248A (en) * | 2018-06-19 | 2018-11-06 | 安徽日升机械制造有限公司 | A kind of manufacturing method of the wear-resisting sewing machine cutting edge of high-precision |
| CN109171891A (en) * | 2018-07-06 | 2019-01-11 | 芜湖匠心金属材料科技有限公司 | A kind of hard metal inserts medical operation is cut and its manufacturing method |
| CN109576457A (en) * | 2018-12-19 | 2019-04-05 | 中钢集团邢台机械轧辊有限公司 | A kind of heat treatment method of cutting edge |
| CN110125629A (en) * | 2019-06-27 | 2019-08-16 | 马鞍山市恒利达机械刀片有限公司 | A kind of rolling shearing blade processing technology of high flatness |
| CN113088638A (en) * | 2021-04-07 | 2021-07-09 | 南通四合不锈钢制品有限公司 | Heat treatment process for steel cutter |
| CN113430354A (en) * | 2021-07-07 | 2021-09-24 | 马鞍山市旭隆冶金机械有限公司 | High-precision wear-resistant special-shaped shear blade and manufacturing method thereof |
| CN114054844A (en) * | 2021-10-20 | 2022-02-18 | 西安理工大学 | Low-cost self-lubricating blade for hydraulic shearing machine and manufacturing method thereof |
| CN114473371A (en) * | 2021-12-22 | 2022-05-13 | 马鞍山市申力特重工机械股份有限公司 | Preparation method of blade material on shearing machine and shearing test equipment |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747248A (en) * | 2018-06-19 | 2018-11-06 | 安徽日升机械制造有限公司 | A kind of manufacturing method of the wear-resisting sewing machine cutting edge of high-precision |
| CN109171891A (en) * | 2018-07-06 | 2019-01-11 | 芜湖匠心金属材料科技有限公司 | A kind of hard metal inserts medical operation is cut and its manufacturing method |
| CN109576457A (en) * | 2018-12-19 | 2019-04-05 | 中钢集团邢台机械轧辊有限公司 | A kind of heat treatment method of cutting edge |
| CN110125629A (en) * | 2019-06-27 | 2019-08-16 | 马鞍山市恒利达机械刀片有限公司 | A kind of rolling shearing blade processing technology of high flatness |
| CN113088638A (en) * | 2021-04-07 | 2021-07-09 | 南通四合不锈钢制品有限公司 | Heat treatment process for steel cutter |
| CN113430354A (en) * | 2021-07-07 | 2021-09-24 | 马鞍山市旭隆冶金机械有限公司 | High-precision wear-resistant special-shaped shear blade and manufacturing method thereof |
| CN114054844A (en) * | 2021-10-20 | 2022-02-18 | 西安理工大学 | Low-cost self-lubricating blade for hydraulic shearing machine and manufacturing method thereof |
| CN114473371A (en) * | 2021-12-22 | 2022-05-13 | 马鞍山市申力特重工机械股份有限公司 | Preparation method of blade material on shearing machine and shearing test equipment |
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Application publication date: 20180209 |