Alloy saw chain

Abstract

The invention relates to an alloy saw chain. The alloy saw chain comprises a plurality of middle guide teeth which are evenly arrayed, the top portions and the bottom portions of every two adjacent middle guide teeth are alternately provided with connecting pieces and bent connecting pieces, a tool rest is fixed to the side portion of each bent connecting piece, an alloy tool bit is fixed to each tool rest, and the connecting pieces and the bent connecting pieces are alternately arranged on the upper sides and the lower sides of the middle guide teeth and are connected with the middle guide teeth through rivets to form a chain structure. The alloy saw chain is stable in structure, the structure method that the connecting pieces, the tool rests and the bent connecting pieces are matched with one another is adopted, each bent connecting piece is bent to form two fixing plates which form a right angle and are divided into a bottom plate and the tool rest fixing plate, the bottom plates are connected with the middle guide teeth through rivets, the tool rest fixing plates fix the tool rests through clamping platforms, welding and thermal processing are sequentially conducted through high-temperature welding materials at the temperature exceeding the thermal processing temperature, a tool bit clamping groove is formed between every two adjacent arc-shaped protrusions, the alloy tool bits in different styles can be installed in the tool bit clamping grooves, and therefore the hardness and firmness of the alloy tool bits are ensured, and the strength of the saw chain is also ensured.

Description

technical field [0001] The invention relates to an alloy saw chain. Background technique [0002] Saw chain is a very convenient and powerful portable tool with the ability to replace the chain, but the chains on the market are mainly for cutting wood, and are suitable for hard wood, light bricks, tree roots and soft ore. Waiting can do nothing. The manufacturers of the existing research and development products either have a short chain life, or the cutter heads are dropped, and the products are extremely immature. The main reason is the contradiction between the heat treatment temperature and the welding temperature. If the heat treatment is performed first, the welding temperature is enough to reduce the hardness of the tool holder, which seriously affects the overall strength of the chain. Otherwise, the welded alloy cutter head will be melted down, and the welding contact area is small, and the positional stability is poor. Low production efficiency, short service li...

AI Technical Summary

Problems solved by technology

[0002] Saw chain is a very convenient and powerful portable tool with the ability to replace the chain. However, the chains on the market are mainly for cutting wood, and are suitable for hard wood, light bricks, tree roots and soft ore. wait helpless

Manufacturers of existing research and development products, either the chain life is short, or the cutter head is dropped, and the products are extremely immature

The main reason is the contradiction between the heat treatment temperature and the welding temperature. If the heat treatment is performed first, the welding temperature is enough to reduce the hardness of the tool holder, which seriously affects the overall strength of the chain.

On the contrary, the welded alloy cutter head will be melted down, and the welding contact area is small, and the position stability is poor

Low production efficiency, short service life, high user cost

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