CN2292627Y - Composite shear blade - Google Patents
Composite shear blade Download PDFInfo
- Publication number
- CN2292627Y CN2292627Y CN 96224074 CN96224074U CN2292627Y CN 2292627 Y CN2292627 Y CN 2292627Y CN 96224074 CN96224074 CN 96224074 CN 96224074 U CN96224074 U CN 96224074U CN 2292627 Y CN2292627 Y CN 2292627Y
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- CN
- China
- Prior art keywords
- blade
- utility
- cutter hub
- model
- cutter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Accessories And Tools For Shearing Machines (AREA)
Abstract
The utility model relates to a composite shear blade which is exclusively used for shearing hot steel billet and steel bar, composed of a cutter body (1) which is made of structural steel and a cutter edge (2) which is made of wear-resistant high-strength alloy solder through surfacing. A combination part of the cutter body (1) and the cutter edge (2) is provided with a weld groove (3) with a special shape on the cutter body (1). The utility model has the advantages that the cutter body (1) and the cutter edge (2) obtain good welding through the weld groove (3), the cutter edge is not easily broken up, the whole of the blade is strong, the toughness is high, the cost is low, and the utility model is easy to repair and utilize again. The utility model is suitable for metallurgical plants to shear steel billet and steel bar in a hot state mode.
Description
The utility model relates to the shear blade of a kind of metallurgical works with the scissors machine, and particularly a kind of being exclusively used in sheared hot steel billet, the compound shear blade of steel.
In metallurgical works, the integral knife blade that the shearing of hot steel billet, steel adopts steel alloy to make more, this integral knife blade ubiquity manufacturing cost height, breaks down are difficult for shortcomings such as reparation.
Application number a kind of compound shear blade that has been 91227081.0 patent disclosure with alloy-layer, it has overcome some shortcoming of integral knife blade, but has the following disadvantages:
1, the cutter hub of making of carbon steel is difficult to adapt in the metallurgical production to different steel grades, different shear strengths, and the shearing requirement under the different shearing conditions, especially under the shear at high temperature state, cutter hub is easy to soften, the intensity of cutter hub can not be complementary with the intensity of blade, is difficult to bear strong vibration and impact, is easy in actual use occur cause shear blade to be scrapped because of the cutter hub distortion.
2, the design of the joint portion of cutter hub and alloy-layer is unreasonable, and stress appears in wedge angle position easily to be concentrated, and alloy layer thickness is too little, can not satisfy the requirement that the metallurgical works large-tonnage is sheared at all.
The purpose of this utility model is to provide a kind of design more reasonable, is useful for the compound shear blade of hot shearing steel billet, steel.
The purpose of this utility model is achieved like this.Cutter hub (1) is made by structural steel, can select structural carbon steel or structural alloy steel according to the requirement of shear strength, to guarantee cutter hub enough intensity is arranged.Blade (2) is used except that containing elements such as carbon, chromium, tungsten, molybdenum, vanadium and is also required suitably to add the wear-resisting high-strength degree solder making that elements such as a little amount of titanium, niobium, boron, aluminium, nickel, cobalt constitute according to shear strength.Go up and the joint portion of blade (2) has the welding groove (3) of special shape at cutter hub (1), with above-mentioned solder built-up welding on the welding groove (3) on the cutter hub (1).Promptly make blade (2).The alloy layer thickness of blade (2) is between the 5-30 millimeter.The shape and size of welding groove (3) require according to shear strength and cutter hub (1) cooperates requirement to design and process with strong, the toughness of blade (2) material therefor.The intensity and the toughness of cutter hub (1) guarantee by selection and Technology for Heating Processing, the intensity of blade (2) and toughness guarantee by adjusting solder component, and make cutter hub (1) and blade (2) that good weldability and combination of strength and toughness be arranged, thereby guarantee the overall performance of shear blade.
The utility model is compared with existing shear blade, has the following advantages:
1, the whole synthesis performance of blade improves, both overcome integral knife blade and be difficult to repair, the shortcoming that cost is high, avoided again existing composite blade cutter hub strong with blade, tough cooperate bad, be difficult to satisfy the deficiency that large-tonnage is sheared, make it in metallurgical works, have more practicality.
2, the welding groove of special shape has guaranteed the good seam of cutter hub and blade, makes blade be difficult for bursting apart.
3, improve 3-6 doubly than existing blade service life.
4, fabrication cycle is short, technology is simple, cost is low, be easy to popularization.
The drawing explanation of accompanying drawing
Fig. 1 is the utility model front view
Fig. 2 is a cutaway view of the present utility model
Fig. 3 is the partial enlarged view after cutter hub and the blade seam
Below in conjunction with accompanying drawing and by embodiment the utility model is further described,
Select for use grade of steel be 35CrMoV structural alloy steel through forge, machined, heat treatment make cutter hub (1), selects for use the solder that closes carbon, chromium, tungsten, molybdenum, vanadium and a little amount of titanium to make blade (2).Be to guarantee the good seam of cutter hub (1) and blade (2), on cutter hub (1), have the welding groove (3) of two chamferings, and radius is arranged at the chamfering place of welding groove (3) is 3 millimeters transition arc.Selected solder built-up welding on welding groove (3), should be handled with grinding through disappearing and promptly to be made blade (2).The external dimensions of blade (2) is 10 * 12 millimeters, and the blade overall dimensions is 310 * 210 * 80 millimeters, and shearing tonnage is 600 tons.The described composite blade of present embodiment is used for the billet of 180 millimeters of hot shearings, and improve 4 times than former with integral knife blade its service life, and cost reduces by 75%.
Claims (3)
1, a kind of shear blade that is composited by cutter hub and blade, it is characterized in that, cutter hub (1) is made of structural steel, and blade (2) is formed through built-up welding by the wear-resisting high-strength degree solder that also contains elements such as a little amount of titanium, niobium, aluminium, cobalt, boron except that elements such as carbon containing, chromium, tungsten, molybdenum, vanadium.
2, as the described shear blade of claim (1), the alloy layer thickness that it is characterized in that blade (2) is between 5～30 millimeters.
3,, it is characterized in that cutter hub (1) binding site last and blade (2) has the welding groove (3) of special shape in advance as the described shear blade of claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96224074 CN2292627Y (en) | 1996-11-18 | 1996-11-18 | Composite shear blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96224074 CN2292627Y (en) | 1996-11-18 | 1996-11-18 | Composite shear blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292627Y true CN2292627Y (en) | 1998-09-30 |
Family
ID=33903141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96224074 Expired - Fee Related CN2292627Y (en) | 1996-11-18 | 1996-11-18 | Composite shear blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292627Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451981A (en) * | 2010-10-29 | 2012-05-16 | 株式会社近畿 | Manufacturing method of cutting blade and cutting blade manufactured by same |
-
1996
- 1996-11-18 CN CN 96224074 patent/CN2292627Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102451981A (en) * | 2010-10-29 | 2012-05-16 | 株式会社近畿 | Manufacturing method of cutting blade and cutting blade manufactured by same |
| CN102451981B (en) * | 2010-10-29 | 2015-12-09 | 株式会社近畿 | The cutting edge that the manufacture method of cutting edge and the method manufacture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |