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Preparation method of hard alloy saw blade

A technology of cemented carbide and cemented carbide particles, which is applied in metal sawing equipment, tool manufacturing of sawing machine devices, metal processing equipment, etc., to achieve the effect of high hardness and wide application range

Inactive Publication Date: 2009-12-16
JIANGSU FUNLIN SUPER HARD TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resin slicing can only cut ordinary steel bars, and it is helpless when it encounters cement and stone, while diamond saw blades can only cut cement and stone, and can't do anything to metal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The preparation method of cemented carbide saw blade that the present invention relates to mainly comprises following process:

[0018] Step 1. Sandblasting the saw blade substrate before welding to ensure no oil, no water, clean and dry. The base material of the saw blade is 65Mn steel plate, the thickness is 3-5mm, and the hardness is HRC40-50. In order to reduce the noise during cutting and cool down the surface, there are noise-absorbing patterns laser-cut on the surface of the saw blade base.

[0019] Step 2. Tightly clamp the saw blade base with an aluminum splint (welding blank), the outer edge of the saw blade base leaks 3 to 5 mm from the upper aluminum splint, and the lower aluminum splint is 20 to 30 mm higher than the edge of the saw blade base.

[0020] Step 3, welding the cemented carbide particles to the outer edge of the saw blade substrate. The cemented carbide particles are made of YG8 with a diameter of 3-6mm. Soak the cemented carbide particles wit...

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Abstract

The invention relates to a preparation method of a hard alloy saw blade, the method mainly comprises the following technological processes: 1. sand blasting processing is carried out to a saw blade basal body before welding, the material of the saw blade basal body is 65Mn steel plate, the thickness is 3 to 5mm, the harness is HRC40-50, and flow marks are cut on the surface of the saw blade basal body by laser; 2. the saw blade basal body is held by an aluminium splint; 3. hard alloy particles are welded at the outer edge of the saw blade basal body, the material of the hard alloy particles is YG8, before being welded, the hard alloy particles are soaked for 3 to 5 minutes and air-dried, and then acryloidcement are uniformly sprayed on the surface of the hard alloy particles, a layer of 200 meshes of red copper powder is uniformly spread on the surface, so as to lead the surface of the hard alloy particles to be adhered with a layer of dried copper powder, the welding flux for welding is compound welding flux according to the proportion that sodium borate : boracic acid is equal to 1 : 1, and flame welding sticks is oxygen-acetylene gas flame, when in welding, the temperature of the oxygen-acetylene gas flame is adjusted to 850 plus or minus 10 DEG C. The preparation method of the hard alloy saw blade can quickly cut various materials.

Description

(1) Technical field [0001] The invention relates to a preparation method of a saw blade for cutting. It belongs to the technical field of cutting tools. (2) Background technology [0002] In view of the frequent natural disasters and man-made disasters in today's world: such as natural disasters and various traffic accidents, I feel the primitive and backward mode in the process of emergency rescue and disaster relief, especially in critical moments, need fast and effective rescue, and even more Have good cutting tools to assist. For example, when two vehicles collide on the expressway, the vehicle body is severely damaged, and the wounded are trapped in the compartment; if in an earthquake, the wounded are pressed under the tight reinforced concrete slab, there is an urgent need for a tool that can quickly cut off the Various materials are rescued. [0003] Cutting tools currently on the market are nothing more than two types of resin slices and diamond saw blades. Resi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D65/00B23K28/02B23K5/00B23K5/213B23K35/24B23K35/30B23K35/362B23D61/00B23K26/38
Inventor 庄政伟
Owner JIANGSU FUNLIN SUPER HARD TOOLS
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