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CN2606665Y - Cutting tool - Google Patents

Cutting tool Download PDF

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Publication number
CN2606665Y
CN2606665Y CN 03241751 CN03241751U CN2606665Y CN 2606665 Y CN2606665 Y CN 2606665Y CN 03241751 CN03241751 CN 03241751 CN 03241751 U CN03241751 U CN 03241751U CN 2606665 Y CN2606665 Y CN 2606665Y
Authority
CN
China
Prior art keywords
cutter
coating
coat
blade
edge
Prior art date
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 - Lifetime
Application number
CN 03241751
Other languages
Chinese (zh)
Inventor
姚建华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University of Technology ZJUT
Original Assignee
Zhejiang University of Technology ZJUT
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang University of Technology ZJUT filed Critical Zhejiang University of Technology ZJUT
Priority to CN 03241751 priority Critical patent/CN2606665Y/en
Application granted granted Critical
Publication of CN2606665Y publication Critical patent/CN2606665Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a cutter comprising a cutter body, an edge and a handle and is characterized in that a coating made up of the compound of nano carbon-fiber, nono-ceramics, adhesive and micron super-fine hard alloy is coated on the edge by laser to obtain the edge of the cutter with even coating and high abrasion resistance. The improved cutter has a coating with a thickness of 20 to 1000 microns, and is dense and even as well as is combined with the base in a metallurgy mode. The utility model realizes the gradient transition of hardness, stress and materials, makes the cutter abrasion-resistant, shock resistant, sharp and makes the coating uneasy to fall off, thereby extending the lifespan of the cutter.

Description

A kind of cutter
Technical field
A kind of cutter is particularly useful for kitchen cutter, gardens with cutter and carpenter, cut paper, leather industry cutter.
Background technology
External cutter, matrix cutting edge coating is generally the W-Co carbide alloy, about 50~100 μ m of particle diameter, its matrix of Metallographic Analysis is a martensitic stain less steel, quality adjustment condition.Subject matter: coating and matrix are non-metallurgical binding, and coating and matrix have tangible joint line, and transition such as hardness, stress, material are mild inadequately, and being coated with layer analysis is that plasma spraying is made, and easily causes problems such as disbonding, spring sword.
Domestic cutter is whole the manufacturing, and as to adopt the 3Cr13 martensitic stain less steel, bulk heat treatmet obtains, and also useful bimetallic clad steel plate is made, but does not see the kitchen cutter of cutting edge laser coatings at home.
Summary of the invention
Main technical schemes of the present utility model is: this cutter comprises cutter hub, blade and handle of a knife, it is characterized in that the coat of the mixture that laser melting coating on the blade is made up of carbon nano-fiber, nano ceramics, bonding agent and micron order carbide alloy.Only laser melting coating has coat on the blade single face.Coat thickness is 20~1000 μ m, and the coat width is 4~20mm, carbon nano-fiber diameter 5~50nm wherein, and length 10~50 μ m are mainly and strengthen the hard ceramic fiber, and bonding agent is phenolic resins or varnish.
Improved this cutter the kitchen edge produce the densification of thickness 20~1000 μ m, evenly and with the coating of matrix metallurgical binding.Realize the gradient transition of hardness, stress and material, make that cutter is wear-resisting, shock resistance, sharp and coating difficult drop-off, thereby prolong cutter life.
Description of drawings: the structural representation of A-A profile Fig. 3 utility model embodiment 2 of Fig. 1 the utility model embodiment 1 structural representation Fig. 2 utility model embodiment 1 Fig. 1
The specific embodiment
Below in conjunction with Fig. 1 and Fig. 2 the utility model is done one and describe in detail, this cutter is made up of cutter hub 2, blade 1 and handle of a knife 3 as shown in Figure 1, and the fractography structure of cutting edge roundness has coat 4 in the single face cladding of blade 1 as shown in Figure 2.Surface coating layer 4 hardness HV1000~1100, coat 4 thickness: kitchen cutter 20~80 μ m, use cutter, coat 4 thickness 0.2~1.0mm, surface coating layer 4 width 4~20mm for gardens, bamboo wood.Nanometer C fibre diameter 5~50nm wherein, length 10~50 μ m are mainly and strengthen the hard ceramic fiber, and matrix is played the carburetting invigoration effect.Above alloy mixed powder accounts for 20% and accounts for 80% with binding agent and constitute pasty state liquid.Technical process is made cutter blank according to routine, the little sword of the big sword of opening one side, and blade 1 is used alcohol, and cleaning agents such as rosin clean, and preheating cutter hub 2 back spraying hybrid alloys carry out Laser Cladding Treatment.Cutter hub 2 materials are martensite type stainless steels such as 3Cr13,4Cr13, the 5Cr15 of quenching attitude, and the specification of product is divided into 1*~8* by blade length (the longest position) difference, and A, B two classes are arranged, and its specification is with reference to QB/T1924-93 " kitchen knife " standard.Blade harden zone area accounts for 80% of whole hardenability band 5 areas, tempering band 6 width≤0.2mm, cutting edge hardenability band 5 hardness HV 〉=600.For gardens, bamboo wood with knife structure on the original basis, cutter hub 2 materials adopt 40Cr, 40Mn, 65Mn, 40CrMo, 60Si2Mn respectively., put the first edge on a knife or a pair of scissors based on single face, see Fig. 3 example.Embodiment 2, are example with the sloyd knife, and making step is described as follows:
1, cutter hub 9 plate shapings (the same) with common process, and leave allowance for finish;
2, cutting edge roundness 10 cleans or sandblast;
3, be coated with special coating at cutting edge 10 single faces, composition: mishmetal 10~20%, 10~20% alloys, binding agent 70~80%, main application is absorption and the top layer alloying that improves light, and wherein alloy composition is: WC 55~70%, Co 5~20%, Cr 5~20%, Mo 1~2%, W 0.5~1%, C2%;
4, the laser treatment cutting edge 10, form thick alloy strengthening coat 7 of 0.2~1.0mm and the hardenability band 8 of 0.2~4mm, and laser processing parameter is as follows:
Laser technical parameters
CO 2Crossing current laser Cutter hub thickness Power (KW) Speed V (mm/min) Hot spot Surface state
≤2mm 4-5 1-3 10*2 Water cooling
≥2mm 3-4 0.5-2 10*2 Water cooling
5, the sharpening that puts the first edge on a knife or a pair of scissors: the inside, laser place is finish grinded, puts the first edge on a knife or a pair of scissors from the laser treatment face, and in the future sharpening in the laser side that is untreated.
The present invention adopts the ultra-fine carbide alloy of Nano carbon fibers peacekeeping to carry out the quick cladding of thin layer at kitchen cutter blade 1, obtain coating evenly, the cutting edge roundness 1 of high abrasion.Improve the hardness and the wearability of cutting edge roundness 1, make cutting edge roundness coat 4 fine and close, evenly, toughness, wear-resisting and and the matrix problem that produces aspect such as metallurgical binding improve.

Claims (6)

1. a cutter comprises cutter hub, blade and handle of a knife, it is characterized in that the coat that knife edge part is made up of the mixture of carbon nano-fiber, nano ceramics, micron-class superfine Hardmetal materials and bonding agent with laser melting coating.
2. a kind of cutter according to claim 1, the thickness that it is characterized in that the blade coat are 20~1000 μ m.
3. according to claim 1 described a kind of cutter, the width that it is characterized in that the blade coat is 4~20mm.
4. according to claim 1 or 2 or 3 described a kind of cutters, it is characterized in that the coat material nano carbon fiber diameter 5~50nm of knife edge part, length 10~50 μ m.
5. according to claim 1 described a kind of cutter, it is characterized in that the bonding agent in the knife edge part coat material is phenolic resins or varnish.
6. a kind of cutter according to claim 1 only is characterized in that in the single face cladding of blade coat being arranged.
CN 03241751 2003-03-18 2003-03-18 Cutting tool Expired - Lifetime CN2606665Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03241751 CN2606665Y (en) 2003-03-18 2003-03-18 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03241751 CN2606665Y (en) 2003-03-18 2003-03-18 Cutting tool

Publications (1)

Publication Number Publication Date
CN2606665Y true CN2606665Y (en) 2004-03-17

Family

ID=34168489

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 03241751 Expired - Lifetime CN2606665Y (en) 2003-03-18 2003-03-18 Cutting tool

Country Status (1)

Country Link
CN (1) CN2606665Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365166C (en) * 2003-03-18 2008-01-30 浙江工业大学 Cutter and its processing method
US8776382B2 (en) 2008-10-02 2014-07-15 Ihi Corporation Cutting instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100365166C (en) * 2003-03-18 2008-01-30 浙江工业大学 Cutter and its processing method
US8776382B2 (en) 2008-10-02 2014-07-15 Ihi Corporation Cutting instrument

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Effective date of abandoning: 20080130

C25 Abandonment of patent right or utility model to avoid double patenting