Preparation process of wear-resistance kitchen knife

A preparation process and technology of kitchen knives, applied in the field of preparation technology of wear-resistant kitchen knives, can solve problems such as poor quality of knives, and achieve the effects of convenient cost control, improved bargaining space, toughness and impact resistance

Inactive Publication Date: 2018-07-24
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the gap between my country's kitchen knife industry and foreign countries in terms of technical sophistication and process maturity, even if the

Method used

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  • Preparation process of wear-resistance kitchen knife
  • Preparation process of wear-resistance kitchen knife
  • Preparation process of wear-resistance kitchen knife

Examples

Experimental program
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Effect test

Embodiment 1

[0030] The preparation process of the wear-resistant kitchen knife in this embodiment is as follows:

[0031] 1. Decontamination treatment on the surface of the billet

[0032] Using 45# steel as the blade material, the outer surface of the billet is initially polished with 200#~400# grit sandpaper to remove the rust and stains on the surface to obtain a smoother outer surface, which is the next step of plasma spray welding prepare.

[0033] 2. Heating pretreatment of billet surface

[0034] Use a portable spray gun to heat the surface of the 45# billet treated in step 1, and the heating time is 30-60s. If plasma spray welding is performed directly on the surface of the steel billet, the high temperature during plasma spray welding will cause uneven heating of the steel billet, which will lead to cracks in the obtained wear-resistant coating, so the steel billet needs to be preheated first.

[0035] 3. Prepare wear-resistant coating by plasma spray welding

[0036] Fe313 iron-based sel...

Embodiment 2

[0046] The preparation process of the wear-resistant kitchen knife in this embodiment is as follows:

[0047] 1. Decontamination treatment on the surface of the billet

[0048] Using 3Cr13 stainless steel as the blade material, the outer surface of the billet is initially polished with 200#~400# grit sandpaper to remove the rust and stains on the surface to obtain a smoother outer surface, which is used for the next plasma spray welding. ready.

[0049] 2. Heating pretreatment of billet surface

[0050] Use a portable spray gun to heat the surface of the billet treated in step 1, and the heating time is 40-60s. If plasma spray welding is performed directly on the surface of the steel billet, the high temperature during plasma spray welding will cause uneven heating of the steel billet, which will lead to cracks in the obtained wear-resistant coating, so the steel billet needs to be preheated first.

[0051] 3. Prepare wear-resistant coating by plasma spray welding

[0052] Fe313 iron-b...

Embodiment 3

[0062] The preparation process of the wear-resistant kitchen knife in this embodiment is as follows:

[0063] 1. Decontamination treatment on the surface of the billet

[0064] Using T10 high-carbon steel as the blade material, the outer surface of the billet is preliminarily polished with 200#~400# grit sandpaper to remove rust and stains on the surface to obtain a smoother outer surface, which is the next step for plasma spraying. Prepare for welding.

[0065] 2. Heating pretreatment of billet surface

[0066] Use a portable spray gun to heat the surface of the billet treated in step 1, and the heating time is 40-60s. If plasma spray welding is performed directly on the surface of the steel billet, the high temperature during plasma spray welding will cause uneven heating of the steel billet, which will lead to cracks in the obtained wear-resistant coating, so the steel billet needs to be preheated first.

[0067] 3. Prepare wear-resistant coating by plasma spray welding

[0068] Fe3...

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Abstract

The invention discloses a preparation process of a wear-resistance kitchen knife. A 45# steel, high-carbon steel or stainless steel blank is used as a knife body material; a WC particle reinforced Febase composite coating layer is prepared on the surface of the steel blank by using a plasma spray welding technology; then, a linear cutting technology is used for machining the steel blank as rectangular sheets with thicknesses of 2 mm, wherein the parts, with the coating layer, of the sheets are used as edges; finally, the edge parts are roughly sharpened and sharpened; and a shank is mounted on the knife body part. The edge material of the wear-resistance kitchen knife is a WC particle reinforced Fe base composite material to achieve higher hardness and wear resistance; the microscopic hardness of the edges is 501-2218 HV, and is far higher than the hardness of edges produced by general kitchen knife production processes; and through higher hardness, wear resistance is excellent, so that sharpness of the edges of the kitchen knife can be maintained for a long time, and the knife is hardly sharpened in daily use.

Description

Technical field [0001] The invention relates to a preparation method of kitchen knives, in particular to a preparation process of wear-resistant kitchen knives. Background technique [0002] my country's kitchen knife production has a long history, but the quality of domestic kitchen knives is generally low and the price is low. In the field of high-end kitchen knives, it has been monopolized by Japanese and German kitchen knife brands. Therefore, no matter from the perspective of the industry or the country, an advanced kitchen knife production process is of great significance to the development of my country's kitchen knife industry. [0003] At present, the production methods of the kitchen knife industry mainly include: heat treatment, composite blades, forging knives, ceramic knives, laser cladding technology, etc. However, due to the gap between my country's kitchen knife industry and foreign countries in terms of technological sophistication and process maturity, even if th...

Claims

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Application Information

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IPC IPC(8): B23P15/00B26B3/00C23C4/134C23C4/06
CPCB23P15/00B26B3/00C23C4/06C23C4/134
Inventor 杜晓东陆雨赵强董浩时运
Owner HEFEI UNIV OF TECH
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