CN101607307B - Manufacture method of stock of high alloy tool steel mechanical cutters and stock - Google Patents
Manufacture method of stock of high alloy tool steel mechanical cutters and stock Download PDFInfo
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- CN101607307B CN101607307B CN2009100545159A CN200910054515A CN101607307B CN 101607307 B CN101607307 B CN 101607307B CN 2009100545159 A CN2009100545159 A CN 2009100545159A CN 200910054515 A CN200910054515 A CN 200910054515A CN 101607307 B CN101607307 B CN 101607307B
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Abstract
The invention relates to the field of manufacturing technologies of mechanical cutters, scissors and moulds, in particular to a manufacture method of stock of high alloy tool steel mechanical cutters, scissors and moulds and the stock. High alloy tool steel is used as a consumable electrode which is in fusion splicing with precast body base metal through electroslag and cast into a groove. Cutter stock, scissor stock, mould stocks, and the like are manufactured by the same way. Electroslag remelting adopted by the method is a melting method which can be used for obtaining pour metal by a resistance heat source generated by slag and can improve the purity, achieve low sulphur content and reduce non-metallic inclusion, and a metal structure welted by the melting method is clean, uniform and compact. The method not only can ensure that cutting edge material has better quality than a cast ingot (consumable electrode), but also is welted and compounded with the body base metal, thereby being a two-in-one process (i.e. a one-step method which is beneficial to simplifying the production process). Due to achieving the metallurgical bonding effect, the composite stock is suitable for being made into various cutters, scissors and mould products used under various working conditions.
Description
Technical field
The present invention relates to mechanical blades, cut, the manufacturing technology field of mould, the particularly a kind of high worker's of closing steel mechanical blades, cut, die blank manufacture method and blank.
Background technology
At industrial circles such as machinery, metallurgy, lightization, timber, use all kinds of cuttves in a large number, cut and mould, in order to save production cost, all kinds of mechanical blades, cut and mould is general only closes worker's steel with a small amount of height in that cutting edge is local, Gong Ying cutter is cut composite blank and is generally all adopted solid phase and solid phase to make with high-temperature high-pressure craft in the market.The sheet material of mild steel commonly used such as A3 is made strip cutting edge b as body mother metal a with alloy tool steel, carries out the Combination Welding d of cutter blank then, and combination place is done protection with thin carbon steel sheet welding and coated c, in case the heating back is oxidized, sees Fig. 1.The sub-assembly of postwelding is after advancing the stove heating, and is rolling by HTHP, milling processing, heat treatment.Compound knife billet is produced in fine finishining.
The solid phase of said method and solid phase compound mainly utilize high temperature and high pressure contract than high-pressure process, rolling equipment is required very high, compound be in operating mode use in often layering easily, finally influenced manufacturing cutter, cut, the quality of mould.And because the problem selected for use of mother metal, make cutter after, cutter is easy to generate situations such as bending, distortion.
Summary of the invention
The object of the present invention is to provide a kind of high worker's of closing steel mechanical blades, cut, the die blank manufacture method and use cutter that this method produces, cut, die blank, mainly solve above-mentioned existing in prior technology technical problem.
For solving the problems of the technologies described above, the present invention is achieved in that
A kind of high worker's of closing steel mechanical blades, cut, the die blank manufacture method, it is characterized in that: it is as consutrode, in the groove of casting on the body mother metal of precasting by the electroslag welding with high alloy tool steel.
Described height closes worker's steel mechanical blades, cuts, the die blank manufacture method, it is characterized in that: water mold is installed in the body mother metal both sides near groove.
Described height closes worker's steel mechanical blades, cuts, the die blank manufacture method, and it is characterized in that: described high alloy tool steel preferably adopts M2, and described body mother metal preferably adopts the 16Mn steel.
Described height closes worker's steel mechanical blades, cuts, the die blank manufacture method, it is characterized in that: electroslag remelting process adopts H1-90 type electroslag remelting equipment, about vertical-type is automatic, 30～35 volts of voltages, 2000～2500 amperes in electric current, speed per minute 60～90mm, purple water mold made of copper, the water flowing cooling, hydraulic pressure 0.2Mpa; Adopt the ternary electroslag, the weight percent content of ternary electroslag is as follows:
CaF
2 30～50％
CaO 10～30％
Al
2O
3 20～40％。
A kind of employing is the cutter blank of method production as mentioned above.
A kind of employing is the clipper blank of method manufacturing as mentioned above.
A kind of employing is the die blank of method manufacturing as mentioned above.
Compared with prior art, characteristics of the present invention are as follows:
1, the electroslag remelting that the inventive method adopted is a kind ofly to be had a resistance thermal source and obtained pure metal by slag, improve purity, contain low-sulfur, reduce the method for smelting of nonmetal inclusion, metal structure cleaning after its remelting, evenly, densification. this method not only makes the cutting edge material obtain than the better quality but also compound with the welding of body mother metal again of ingot casting (consutrode), is a kind of technology (promptly helping simplifying the one-step method of production technology) of the two unification therefore.Owing to reach the effect of metallurgical binding, therefore compound blank be fit to make cutter that various operating modes use, cut, mould product.
2, the inventive method is the compound of liquid phase and solid phase, mainly utilizes the characteristics of metal welding, is accompanied by interfacial diffusion and makes two kinds of metals can reach metallurgical binding, adds that the forging rolling in road, back makes composite bed more firmly fine and close.
3, product of the present invention is selected suitable high-quality steel, makes the inventive method demonstrate fully the characteristics of material, accomplishes good coupling; The body mother metal can adopt the 16Mn steel, and it is compared with A3 steel, Q235 steel, and its yield strength has improved about 1.5 times, makes the distortion that has improved cutter behind the cutter in actual condition greatly, crooked shortcoming.Cutting edge adopts M2 (CW6Mo5Cr4V2), D2, A8, the contour worker of closing of the H13 steel capital to belong to the air quenching steel, so in technology, can utilize the waste heat that stops rolling temperature to carry out dry quenching, so not only can reduce shrend/oil quenching distortion may, saved the energy simultaneously again, make work simplification, easy to operate.
Description of drawings
Fig. 1 is the processing structure schematic diagram that has cutter now, cuts composite blank.
Fig. 2 is that the inventive method prepares cutter, cuts, the processing structure schematic diagram of mould composite blank.
Fig. 3 is the structural representation of the embodiment of the invention 1 single-blade mouth cutter.
Fig. 4 is the structural representation of the embodiment of the invention 2 double blade cutters and double blade punch die.
Fig. 5 is the structural representation of the embodiment of the invention 3 four cutting edge shear-steel plate cutters.
The specific embodiment
Embodiment 1:
See also Fig. 3, this routine product is a kind of single-blade mouth cutter (as: chipper knife, hand papercutter, planing wood cutter, shear-steel plate cutter, cutter etc.) as shown in the figure.Please, can make and make the blank that is used to process above-mentioned cutter with the following method again in conjunction with consulting Fig. 2:
A kind of high worker's of closing steel mechanical blades is cut and die blank electroslag welding process-cutting edge employing height closes worker's steel and (contains high speed steel M2, D2, A8, H13 steel bonded carbide tool steel etc.), fertile material (contains 16Mn, C-Mn steel etc.) carry out the compound and forging rolling moulding process of electroslag welding and produce cutter and cut and die blank, technology may further comprise the steps:
A is by 160 * 180 * 300mm body foundry goods 1 of designing requirement with medium-frequency induction furnace precasting 16Mn steel (can also select for use as C-Mn steel etc.) material, be cast with the groove 11 of 50 * a 70 * 300mm on the body foundry goods, the fusion filling position that is used for electroslag remelting consutrode (cutting edge steel), this groove will guarantee that surfacing is bright and clean.
B can select for use height to close worker's steel M2 (CW6Mo5Gr4V2) by the consutrode 2 of designing requirement with a cutting edge material of medium-frequency induction furnace casting, also can select to contain high speed steel M2 D2, A8, H13 steel bonded carbide tool steel etc. for use; Described electrode size: 30 * 50 * 1500mm, this consutrode, the surface is straight, defectives such as no slag inclusion.
C adopts H1-90 type electroslag remelting equipment, about vertical-type is automatic, and 30～35 volts of voltages, 2000～2500 amperes in electric current, speed per minute 60～90mm, the purple water mold 3 that comprises water inlet 31 and delivery port 32 made of copper is equipped with in body 1 both sides, the water flowing cooling, hydraulic pressure 0.2Mpa.
D adopts ternary electroslag CaF
2(30～50%), CaO (10～30%) and AI
2O
3(20～40%), pool depth 70～100mm, electric current melts the consutrode termination by consutrode and the molten bath heat that has a resistance gradually, motlten metal passes slag bath and forms metal bath (groove promptly is the molten bath), be cast in the body recess, after water mold and body heat absorption cooling, progressively fill whole grooves, take off this deltiod composite blank piece after the cooling.
E hammer cogging: should put into the long 1300 ℃ of continuous high temperature stoves heating of self-control 6M by flat side's composite blank piece, 800～850 ℃ of preheatings, be incubated 90 minutes and continue to be warmed up to 1100～1150 ℃ again, be incubated 40 minutes, be swaged into base material just then: thick 80 * wide by 160 * long 750～800mm, stop forging 900～930 ℃ of temperature.
F is rolled into base: should forge just that the base material advanced heating furnace again, and be heated to 1180～1220 ℃ of insulations 30 minutes, 1100～1150 ℃ of start rolling temperatures roll into the finished product base material of thick 18 * wide by 155 * long 3000mm, stop rolling temperature more than 950 ℃.
G utilizes waste heat Cooling Quenching under high wind of stopping rolling temperature, 540～560 ℃ of temperatures, and after three tempering, this finished product base material is hardness HRC62～64. of compound knife billet band steel material
At last, use above-mentioned blank to process as shown in Figure 3 single-point tool.
See also Fig. 4 (double blade cutter), Fig. 4 (punch die), Fig. 5 (cutter of shear-steel plate) again, also can adopt as embodiment 1 described method and make composite blank, only be the quantity of groove and the position of offering with the difference of embodiment 1.
Being preferred embodiment of the present invention only in sum, is not to be used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application claim change and modification, all should be technology category of the present invention.
Claims (2)
1. one kind high is closed worker's steel mechanical blades blank manufacture method, it is characterized in that it comprises the steps:
A 160mm * 180mm * 300mm body the foundry goods of medium-frequency induction furnace precasting 16Mn steel matter, be cast with the pond type groove of a 50mm * 70mm * 300mm on the body foundry goods, groove is used for the fusion filling position of electroslag remelting consutrode, and this groove will guarantee that surfacing is bright and clean;
B is with the consutrode of a cutting edge material of medium-frequency induction furnace casting, and consutrode selects for use height to close worker's steel M2; Described electrode size: 30mm * 50mm * 1500mm, this consutrode, the surface is straight, no dreg defect;
C adopts H1-90 type electroslag remelting equipment, about vertical-type is automatic, and 30～35 volts of voltages, 2000～2500 amperes in electric current, speed per minute 60～90mm; Near the two sides of pond type groove the purple water mold that comprises water inlet and delivery port made of copper is housed on the body foundry goods, water flowing cooling, hydraulic pressure 0.2MPa;
D adopts the CaF of ternary electroslag 30～50%
2, 10～30% CaO and 20～40% Al
2O
3Pool depth 70～100mm, electric current melts the consutrode termination by consutrode and the molten bath heat that has a resistance gradually, motlten metal passes slag bath and forms metal bath, groove promptly is the molten bath, is cast in the body recess, after water mold and body heat absorption cooling, progressively fill whole grooves, take off this deltiod composite blank piece after the cooling;
E hammer cogging: should put into the long 1300 ℃ of continuous high temperature stoves heating of self-control 6m by flat side's composite blank piece, 800～850 ℃ of preheatings, be incubated 90 minutes and continue to be warmed up to 1100～1150 ℃ again, be incubated 40 minutes, be swaged into base material just then: thick 80mm * wide 160mm * length 750～800mm, stop forging 900～930 ℃ of temperature;
F is rolled into base: should forge just that the base material advanced heating furnace again, and be heated to 1180～1220 ℃ of insulations 30 minutes, 1100～1150 ℃ of start rolling temperatures roll into the finished product base material of thick 18mm * wide 155mm * long 3000mm, stop rolling temperature more than 950 ℃;
G utilizes waste heat Cooling Quenching under high wind of stopping rolling temperature, 540～560 ℃ of temperatures, and after three tempering, this finished product base material is hardness HRC62～64 of compound knife billet band steel material.
2. one kind is adopted the cutter blank of method production according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100545159A CN101607307B (en) | 2009-07-08 | 2009-07-08 | Manufacture method of stock of high alloy tool steel mechanical cutters and stock |
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|---|---|---|---|
| CN2009100545159A CN101607307B (en) | 2009-07-08 | 2009-07-08 | Manufacture method of stock of high alloy tool steel mechanical cutters and stock |
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| CN101607307A CN101607307A (en) | 2009-12-23 |
| CN101607307B true CN101607307B (en) | 2011-08-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109628706A (en) * | 2019-01-28 | 2019-04-16 | 宁波久生模具科技有限公司 | A kind of mold production technology |
| CN115341101A (en) * | 2021-05-13 | 2022-11-15 | 中国科学院金属研究所 | Control method for producing large-specification austenitic stainless steel electroslag remelting ingot nonmetal inclusions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081137A (en) * | 1992-07-07 | 1994-01-26 | 张佐清 | The process of electricity consumption slag muck welding technology renovating old forging die |
| CN1721117A (en) * | 2004-07-13 | 2006-01-18 | 上海集思复合钢技术开发有限公司 | Method for producing surface compound cutter billet by horizontal electro-slag surfacing |
| CN2876308Y (en) * | 2006-03-08 | 2007-03-07 | 周卓林 | Bimetal hard alloy knife blade |
-
2009
- 2009-07-08 CN CN2009100545159A patent/CN101607307B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1081137A (en) * | 1992-07-07 | 1994-01-26 | 张佐清 | The process of electricity consumption slag muck welding technology renovating old forging die |
| CN1721117A (en) * | 2004-07-13 | 2006-01-18 | 上海集思复合钢技术开发有限公司 | Method for producing surface compound cutter billet by horizontal electro-slag surfacing |
| CN2876308Y (en) * | 2006-03-08 | 2007-03-07 | 周卓林 | Bimetal hard alloy knife blade |
Non-Patent Citations (1)
| Title |
|---|
| 车向前等.采用高电阻渣电渣重熔高速钢的研究.《钢铁》.1995,第30卷(第8期),26-30. * |
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Owner name: SHANGHAI MINRUN INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: SHANGHAI JIANJIE INTERNATIONAL TRADING CO., LTD._ Effective date: 20120221 |
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Effective date of registration: 20120221 Address after: 200050, room 1, building 55, 2602 Zhenning Road, Shanghai, Changning District Patentee after: Shanghai people run Industrial Co., Ltd. Address before: 200050 Shanghai City East Robinson road 165 Lane 29 Building Room 501 hair spinning Patentee before: Shanghai Jianjie International Trading Co., Ltd._ |