Method for producing traceless quenching and embossing saw blade

A production method and saw blade technology, which are applied to metal sawing equipment, tool manufacturing of sawing machine devices, tool dressing of sawing machine devices, etc., can solve the problems of poor hardenability and unqualified hardness, and achieve good wear resistance. , beautiful appearance, the effect of improving productivity

Inactive Publication Date: 2008-12-31
HANDAN HANWU COTTON MACHINERY
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a non-marking product that can not only solve the substantive quality problem of unqualified hardness and surface appearance quality caused by poor hardenability of the product, but also reduce the production cost of the product. Production method of quenched ginning saw blade

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  • Method for producing traceless quenching and embossing saw blade

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Embodiment Construction

[0016] The production method of the traceless quenching embossed saw blade comprises the following steps: (1) selecting a cold-rolled strip, (2) heating the cold-rolled strip to 800-850°C and then quenching it in a quenching medium at 40-60°C, (3) Temper the strip after quenching at a temperature of 460-480° C., (4) strip quality inspection after tempering, (5) carry out double-surface polishing of the strip with a cloth wheel emery polishing machine, ( 6) Stamp the polished strip into a saw blade blank, (7) heat treat the saw blade blank at 380-400°C, (8) inspect the quality of the saw blade blank, (9) use the stamped saw blade blank Gear punching machine, (10) Install the punched saw blade on the gear grinding machine to grind the teeth, (11) Sand the ground saw blade to deburr, (12) Put the deburred saw blade on the Medium-temperature heat treatment at 380-400°C, (13) quality inspection of finished products, (14) coating with anti-rust oil and packaging after inspection, (1...

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Abstract

The invention discloses a production method of cotton ginning saw-blade, which directly uses the strip steel to firstly quench and temper and then subsequently process the strip steel. The process steps are as follows: selecting the strip, quenching the strip, inspecting the quality of the strip, polishing the surface of the strip, punching the strip into a blank of the saw-blade, heat treating the blank of the saw-blade, inspecting the quality of the blank, punching teeth on the blank by a sawtooth punching machine, grinding teeth, burring, heat treating the blank in moderate temperature, inspecting the quality of the finished product, packaging the finished product after coating antirust oil on the finished product, and inspecting and warehousing the finished product. The production method continuously produces the strip steel of 350mm and 430mm on quenching and tempering production lines, so the produced saw-blade has stable hardness, good toughness, good wear resistance and long service life.

Description

technical field [0001] The invention relates to a production method of a gin saw blade for a cotton processing machine. Background technique [0002] At present, most of the processes used by cotton processing machinery manufacturers to produce ginning saw blades are medium-carbon steel forming steel plates. First, the steel plate is directly stamped into a saw blade blank, and then quenched and tempered. . Using this traditional process to produce embossed saw blades, because the stamped and formed multi-saw blades are laminated together for quenching, the hardenability is not good, resulting in the hardness of some saw blades not meeting the requirements, and the quality is unstable. Therefore, the production of ginning saw blades by traditional techniques is not only costly, but also has a short service life, the shortest being only about 7 days. At the same time, the traditional process does not have the process of double-surface polishing the steel plate with a cloth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01B1/08B23D65/02B23D63/14
Inventor 杨天民龚时中
Owner HANDAN HANWU COTTON MACHINERY
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