CN100482406C - Method of producing cutting tool steel board with three layer complex blades - Google Patents
Method of producing cutting tool steel board with three layer complex blades Download PDFInfo
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- CN100482406C CN100482406C CNB2007100109428A CN200710010942A CN100482406C CN 100482406 C CN100482406 C CN 100482406C CN B2007100109428 A CNB2007100109428 A CN B2007100109428A CN 200710010942 A CN200710010942 A CN 200710010942A CN 100482406 C CN100482406 C CN 100482406C
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Abstract
The process of making three-layered composite steel plate for cutting tool includes the following steps: taking one thin rod of cutter edge steel and one thick rod of cutter body steel, coaxially compounding these two rods through drilling hole and embedding, heating the compounded rod and forging and welding radially in a forging machine in the deformation of 50 %, heating the forged and welded plate and rolling axially in a rolling mill for welding in the thickness deformation rate not lower than 80 %, heat treatment, rolling and fixing, and splitting the plate along the axis to obtain 2 three-layered composite steel plates for cutting tool. The present invention has high compounding strength, stable product quality, low product cost.
Description
Technical field
The present invention relates to a kind of composite cutting tool steel plate that is used to make cutlery, particularly a kind of manufacture method of cutlery steel plate of three layers of compound blade making cutlery.
Background technology
Cutlery is the instrument that is used to cut or break apart by chopping some article.Cutlery has cutter hub, and cutter hub has continuous blade and blade, and cutter hub can be connected with handle of a knife.Blade is used for realizing the cutting of cutlery or breaks apart by chopping function that blade is used for fixing blade and determines the shape of cutter hub.Press the function of blade and blade, the steel of knife edge part should have higher intensity, higher hardness, toughness preferably, more excellent rustless property, make the cutlery blade of making sharp, do not collapse, stainless, the steel of blade part can be selected common straightcarbon steel for use, and for antirust and attractive in appearance, the steel of blade part also can be selected stainless steel for use.Shear steel is not a kind of steel grade of special-purpose steel, can select generally that intensity is higher in the existing type of steels, hardness is higher for use, toughness is better, rustless property is the steel of excellent comprehensive mechanical property preferably, as phosphorus content greater than 0.6% carbon constructional quality steel, carbon tool steel, alloy tool steel, spring steel, bearing steel etc., also useful exclusive, close special shear steel of not passing on a skill of craft to others.The price of general shear steel is higher, blade and blade all use above-mentioned shear steel to make not only to make the cutlery cost of making higher, also unreasonable with material, for reducing cost, rationally utilizing steel, someone develops three layer clad sheet steel used for cutting-tool, the intermediate layer of three layer clad sheet steel is a shear steel, and two skins are blade steel.In order further to reduce cost, rationally to utilize the shear steel of costliness of steel, saving price, the somebody develops the cutlery steel plate of three layers of compound blade.In the prior art, Chinese patent ZL 02 2 27654 discloses a kind of composite stainless steel kitchen cutter, the blade of its cutter hub and blade are to be combined with each other with argon arc welding, knife edge part is the compound three-ply plate of blast, explode in the compound three-ply plate, the intermediate layer is a shear steel, and the both sides layer is a stainless steel, and blade is the blade steel identical with above-mentioned stainless steel.The cutlery steel plate of this three layers of compound blade will be with three layers of compound blade of method preparation of blast, prepares cutter hub with the method for argon arc welding, and it is compound to explode, process conditions are not easy control, cause the quality to product to be not easy control, make unstable product quality, the production cost of joint product is higher, in addition, the compound process hazard that explodes, it is bigger that environment is exerted an influence, and the weld seam of argon arc welding is an as cast condition, even with the tissue odds of cutter hub, also influence quality.
Summary of the invention
The objective of the invention is to propose a kind of easy control of process conditions in order to overcome above-mentioned deficiency, the quality of product is controlled easily, constant product quality, the manufacture method of the cutter steel plate of a kind of three layers of compound blade that production cost of products is lower.
The present invention is achieved using the following method.
The manufacture method of the cutlery steel plate of three layers of compound blade has the following steps:
1. get shear steel pole material and blade Steel Bar During, the blade Steel Bar During can be pole material or square rod material, and shear steel pole material area of section is 5%～25% of a blade Steel Bar During area of section;
2. adopt the method for boring a hole and inlaying, shear steel pole material and blade Steel Bar During are combined with each other coaxially, after shear steel pole material and blade Steel Bar During are compound, shear steel pole material is in the blade Steel Bar During, the axis of shear steel pole material and blade Steel Bar During is on same straight line, welded together the two ends of shear steel pole material and blade Steel Bar During with the method for welding, obtain inlaying the base rod;
3. be heated to eutectic temperature inlaying the base rod, radially forge and press welding to inlaying the base rod at one with forging press, during the forging and pressing welding, forging hammer radially forges a side of inlaying the base rod at one that inlays the base rod all the time, inlaying the flat one-tenth heavy slab of base rod forging and pressing, the forging and pressing deformation rate is controlled at 48%～52%, obtains forging and pressing welded plate;
4. the forging and pressing welded plate is heated to 1100～1200 ℃, rolls seam with rolling mill along the axis direction that forges and presses welded plate, making the thickness deformation rate of forging and pressing welded plate is 70%～90%, obtains rolling welded plate;
5. the calendering welded plate is cut open along axis, obtained the cutting tool steel panel products of two three layers of compound blades.
The present invention is a raw material with shear steel pole material and blade Steel Bar During, adopt that hot piercing is cold inlays or method base that cold piercing heat is inlayed, the forging and pressing welding, the method of calendering seam is combined with each other blade steel plate and blade steel plate securely, the combined strength bination height, used equipment is common apparatus in the recombination process, easy control of process conditions, the quality of product is controlled easily, constant product quality, the compound cutter hub of making is a shear steel in the intermediate layer of knife edge part only, the both sides layer of knife edge part and blade partly are the blade steel, because cutter hub is with forging, the method processing of pressing is compound, blade steel one integrated mass, even tissue, rational in infrastructure, can save expensive shear steel, production cost is lower.
Below in conjunction with embodiment, the present invention is further described.
The specific embodiment
The cutlery steel plate of three layers of compound blade that produce by the present invention, the blade of cutter hub is the individual layer steel plate of blade steel, and blade is a three-layer composite board, and the intermediate layer steel plate of three-layer composite board is the shear steel steel plate, and both sides layer steel plate is blade steel steel plate.Shear steel is that intensity is higher, hardness is higher, toughness is better, rustless property is the steel of excellent comprehensive mechanical property preferably, shear steel can be that intensity is higher in the existing type of steels, hardness is higher, toughness is better, rustless property is the steel of excellent comprehensive mechanical property preferably, the steel of hardness HRC 〉=55 after particularly quenching, as phosphorus content greater than 0.6% carbon constructional quality steel, carbon tool steel, alloy tool steel, spring steel, bearing steel etc., also useful exclusive, close special shear steel of not passing on a skill of craft to others.The blade steel can be selected common straightcarbon steel for use, and for antirust and attractive in appearance, the blade steel also can be selected stainless steel for use.Three layer clad sheet steel used for cutting-tool can be the multiple combination of above-mentioned shear steel steel plate and blade steel steel plate.
The manufacture method of the cutlery steel plate of three layers of compound blade has the following steps:
1. the T8 steel knife shear-steel pole material and the length of getting length and be 200 mm dias and be 20 millimeters are that 210 mm dias are 1Cr13 blade Steel Bar During of 80 millimeters;
2. adopt that hot piercing is cold inlays or method that cold piercing heat is inlayed, shear steel pole material and blade Steel Bar During are combined with each other coaxially, after shear steel pole material and blade Steel Bar During are compound, shear steel pole material is in the blade Steel Bar During, the axis of shear steel pole material and blade Steel Bar During is on same straight line, welded together the two ends of shear steel pole material and blade Steel Bar During with the method for welding, obtain inlaying the base rod;
3. be heated to eutectic temperature inlaying the base rod, radially forge and press welding to inlaying the base rod at one with forging press, during the forging and pressing welding, forging hammer radially forges a side of inlaying the base rod at one that inlays the base rod all the time, inlaying the flat one-tenth heavy slab of base rod forging and pressing, the forging and pressing deformation rate is controlled at 50%, obtains forging and pressing welded plate;
4. the forging and pressing welded plate is heated to 1100～1200 ℃, carry out multi-pass calendering seam with rolling mill along the axis direction that forges and presses welded plate, pass deformation rate 10%～30%, making the last thickness deformation rate of forging and pressing welded plate is 70%～90%, obtains rolling welded plate;
5. the calendering welded plate is cut open along axis, obtained the cutting tool steel panel products of two three layers of compound blades.
Cutlery steel plate to three layers of compound blade making can be heat-treated, cold rolling, surperficial press polish typing.Step is:
1. the cutlery steel plate to three layers of compound blade carries out gas shield or atmosphere annealing heat treatment 780～820 ℃ temperature; Obtain the heat treatment plate;
2. oil removing, rust cleaning, removal of impurities processing are carried out in the surface of heat treatment plate, obtain the surface treatment plate;
3. with rolling mill surperficial disposable plates is carried out the press polish typing, obtain the cutting tool steel board finished product of three layers of compound blade of cold rolling press polish typing.
The blade steel of the cutlery steel plate of three layers of compound blade is the 1Cr13 steel in the foregoing description, shear steel is the T8 steel, need when the smithwelding moulding that earlier composite blank is heated to 1050 ℃ eutectic temperature and forge and press welding again, need during seam earlier seam ℃ is rolled again in smithwelding blank heating to 1100～1200 in calendering, heat treatment temperature is 780～820 ℃.Because the kind of blade steel and shear steel is a lot, the blade steel of the cutlery steel plate of three layers of compound blade of manufacturing and the combination of shear steel are a lot, when the cutlery steel plate of three layers of compound blade is above-mentioned other blade steel and shear steel combination, can chooses corresponding forging and pressing according to used steel difference and weld required eutectic temperature, the temperature required and heat treatment temperature of calendering seam.
Claims (5)
1. the manufacture method of the cutlery steel plate of three layers of compound blade is characterized in that: have the following steps:
(1) get shear steel pole material and blade Steel Bar During, the blade Steel Bar During is pole material or square rod material, and shear steel pole material area of section is 5%～25% of a blade Steel Bar During area of section;
(2) method that adopts perforation to inlay, shear steel pole material and blade Steel Bar During are combined with each other coaxially, after shear steel pole material and blade Steel Bar During are compound, shear steel pole material is in the blade Steel Bar During, the axis of shear steel pole material and blade Steel Bar During is on same straight line, welded together the two ends of shear steel pole material and blade Steel Bar During with the method for welding, obtain inlaying the base rod;
(3) be heated to eutectic temperature inlaying the base rod, radially forge and press welding to inlaying the base rod at one with the forging machine, during the forging and pressing welding, forging hammer radially forges a side of inlaying the base rod at one that inlays the base rod all the time, inlaying the flat heavy slab that becomes of base rod forging and pressing, the forging and pressing deformation rate is controlled at 48%～52%, obtains forging and pressing welded plate;
(4) the forging and pressing welded plate is heated to 1100～1200 ℃, rolls seam along the axis direction that forges and presses welded plate, make thickness deformation rate 〉=80% of forging and pressing welded plate, obtain rolling welded plate with milling train;
(5) the calendering welded plate is cut open along axis, obtained the cutting tool steel panel products of two three layers of compound blades.
2. press the manufacture method of the cutlery steel plate of the described three layers of compound blade of claim 1, it is characterized in that: described shear steel is the steel of hardness HRC 〉=55 after quenching, and the blade steel is the carbon element steel or stainless steel.
3. press the manufacture method of the cutlery steel plate of the described three layers of compound blade of claim 1, it is characterized in that: described shear steel pole material is that long 200 mm dias are T8 steel poles of 20 millimeters, and blade steel pole material is that long 210 mm dias are 1Cr13 steel poles of 80 millimeters.
4. press the manufacture method of the cutlery steel plate of claim 1,2 or 3 described three layers of compound blade, it is characterized in that: described calendering seam is with hot-rolling mill the forging and pressing welded plate to be carried out multi-pass calendering seam, and every time thickness deformation rate is 10%～30%.
5. by the manufacture method of the cutlery steel plate of claim 1,2 or 3 described three layers of compound blade, it is characterized in that: described the calendering welded plate is cut open along axis, obtain the cutlery steel plate of two three layers of compound blades after, also have the following steps:
(1) the cutlery steel plate to three layers of compound blade carries out gas shield or atmosphere annealing heat treatment 780～820 ℃ temperature; Obtain the heat treatment plate;
(2) oil removing, rust cleaning, removal of impurities processing are carried out in the surface of heat treatment plate, obtain the surface treatment plate;
(3) with milling train surperficial disposable plates is carried out cold rolling press polish typing, obtain the cutlery steel plate of three layers of compound blade of cold rolling press polish typing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100109428A CN100482406C (en) | 2007-04-13 | 2007-04-13 | Method of producing cutting tool steel board with three layer complex blades |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007100109428A CN100482406C (en) | 2007-04-13 | 2007-04-13 | Method of producing cutting tool steel board with three layer complex blades |
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| CN101032793A CN101032793A (en) | 2007-09-12 |
| CN100482406C true CN100482406C (en) | 2009-04-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2180385A1 (en) * | 2008-10-21 | 2010-04-28 | The Swatch Group Research and Development Ltd. | Method for manufacturing a watch plate |
| CN104339133A (en) * | 2014-10-16 | 2015-02-11 | 上海泛屹复合钢有限公司 | Central composite stainless cutter strip steel and preparation method thereof |
| CN106001894A (en) * | 2016-06-17 | 2016-10-12 | 芜湖三刀材料科技有限公司 | Double-metal transition fit device for single-edge tool blank |
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Assignee: Liaoning Huayang New Group Assignor: Liaoning Xinhuayang Cutting-tool Composite Material Co., Ltd. Contract fulfillment period: 2009.7.28 to 2017.2.18 contract change Contract record no.: 2009210000209 Denomination of invention: Method of producing cutting tool steel board with three layer complex blades Granted publication date: 20090429 License type: Exclusive license Record date: 2009.9.30 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.28 TO 2017.2.18; CHANGE OF CONTRACT Name of requester: LIAONING XINHUAYANG WEIYE EQUIPMENT MANUFACTURING Effective date: 20090930 |
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Owner name: LIAONING HUAYANG NEW GROUP Free format text: FORMER OWNER: LIAONING XINHUAYANG CUTTING-TOOL COMPOSITE MATERIAL CO., LTD. Effective date: 20120522 |
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Effective date of registration: 20120522 Address after: Wanquan road Tieling high tech Industrial Development Zone in Liaoning province xintaizi town of Tieling County in Liaoning province 112611 No. 1 Patentee after: Liaoning Huayang New Group Address before: Wanquan road Tieling high tech Industrial Development Zone in Liaoning province xintaizi town of Tieling County in Liaoning province 112611 No. 1 Patentee before: Liaoning Xinhuayang Cutting-tool Composite Material Co., Ltd. |