Hard alloy saw blade and welding method thereof

A technology of hard alloys and welding methods, which is applied in welding equipment, welding equipment, metal sawing equipment, etc., and can solve problems such as stress cracks, uneven hardness of sawtooth tooth seats, and high hardness

Active Publication Date: 2018-03-27
ZHONGSHAN KINGWAVE SAW BLADE MFG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a cemented carbide saw blade and its welding method. On the one hand, the present invention solves the problem of uneven and high hardness of the sawtooth seat, which leads to the cutting of the tooth seat.
On the other hand, it solves the problem of stress cracks between adjacent saw teeth, reduces the scrapping of products and reduces the safety problems of product use

Method used

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  • Hard alloy saw blade and welding method thereof
  • Hard alloy saw blade and welding method thereof
  • Hard alloy saw blade and welding method thereof

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0022] figure 1 It is a welding principle diagram of a welding method of a cemented carbide saw blade provided by the present invention.

[0023] Such as figure 1 As shown, the first embodiment of the present invention provides a welding method for cemented carbide saw blades, including:

[0024] S1, heating the placed cemented carbide cutter head 2, welding wire, flux and saw blade substrate, the heating time is 4-10 ...

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Abstract

The invention discloses a hard alloy saw blade and a welding method thereof. The method comprises the following steps: (S1) a hard alloy tool bit, a saw blade basal body, a welding wire and a flux areheated after placement; (S2) under 760-840 DEG C temperature environment, the molten welding wire is paved in a gap between the hard alloy tool bit and the saw blade basal body by using a wetting effect of the flux; (S3) a primary welding body is obtained by cooling; and when the temperature of the primary welding body is lower than 350 DEG C, the primary welding body is primarily tempered; and (S4) the primary welding body is secondarily tempered within 1-3 hours after primary tempering to obtain the hard alloy saw blade; the secondary tempering is performed in a closed container; and the temperatures in all space positions in the container are kept consistent. The tooth base rupture problem during cutting and the stress crack problem between adjacent saw teeth are solved.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a cemented carbide saw blade and a welding method thereof. Background technique [0002] Carbide circular saw blades are widely used in furniture manufacturing, engineering construction, and home decoration industries. [0003] The existing technology is performed by manual welding or automatic equipment welding. During the welding process, due to the difficulty in controlling the temperature and time, tempering cannot completely eliminate the stress of the base tooth seat and reduce the hardness of the base tooth seat, resulting in: ①In the cutting process, the aluminum alloy saw blade is prone to the safety problem of tooth seat fracture due to the large impact; ②For the saw blade with a tooth pitch ≤ 12mm, due to the existence of the welding heat affected zone between two adjacent saw teeth during welding, Critical staggered state, so prone to safety issues of tensile stress...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D61/00B23D65/00B23K31/02
CPCB23D61/00B23D65/00B23K31/02B23K2101/20B23D61/04B23D61/14B23K1/002B23K31/025B23B27/18
Inventor 覃旭黄皓楠
Owner ZHONGSHAN KINGWAVE SAW BLADE MFG LTD
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