Combined forging method for high-strength and high-toughness special steel forgings
A special steel, high toughness technology, applied in the direction of manufacturing tools, forging/pressing/hammer devices, forging/pressing/hammering machinery, etc., can solve the problems of difficult top slope, adjustment, low efficiency, etc., to achieve convenient operation, location The effect of quick correction
Inactive Publication Date: 2022-04-26
常州常超模具有限公司
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Problems solved by technology
[0004] The problem to be solved by the present invention is to provide a combined forging method for high-strength and high-toughness special steel forgings, which solves the problem that the top slope of the existing cylindrical special steel forging with a sloped surface is difficult to pass through the existing forging process. The method realizes forging, and the efficiency is low in the actual forging process; when forging is carried out by the combined forging method, the clamping and cutting of the forged special steel forging is realized by using the clamping device, and the clamping device cannot be adjusted according to the length of the special steel forging at this time. And when cutting, it needs to be constantly adjusted so that the technical problems corresponding to the middle part and the cutting part
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0029] Specific examples are given below.
[0030] see Figure 1~Figure 4 , a combined forging method for high-strength and high-toughness special steel forgings, the specific steps of the combined forging method are as follows:
[0031] Step 1: Casting special steel ingots, transfer the cast special steel ingots to an annealing furnace adjusted to 550°C at 700-850°C, and raise the temperature to 650°C for a uniform temperature;
[0032] Step 2: transfer the stee...
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The invention relates to a combined forging method of a high-strength and high-toughness special steel forge piece, which comprises the following specific operation steps of: 1, casting a special steel ingot, transferring the cast special steel ingot at 700-850 DEG C into an annealing furnace adjusted to 550 DEG C, and heating to 650 DEG C to homogenize the temperature; secondly, the steel ingot is transferred into a forging heating furnace to be heated and forged, a cylindrical special steel forge piece is obtained, and the special forge piece is sequentially subjected to normalizing treatment, hydrogen diffusion treatment, heating austenitizing treatment, step quenching treatment and tempering treatment; when the clamping device is used for clamping the special steel forgings, the second air pressure rod on the first mounting plate works to drive the second clamping mechanism to move, and then the distance between the first clamping mechanism and the second clamping mechanism is adjusted according to the lengths of the special steel forgings, so that the special steel forgings of different specifications are limited and fixed.
Description
technical field [0001] The invention relates to the technical field of combined forging, in particular to a combined forging method for high-strength and high-toughness special steel forgings. Background technique [0002] Combined forging method is to reasonably combine two, three or more workpieces with the same shape and forge them as one forging. It can simplify the forging process, facilitate machining, improve quality and increase efficiency. [0003] During the forging process of the existing cylindrical special steel forging with a beveled top, the top bevel is difficult to forge through the existing forging method, and the efficiency in the actual forging process is low; Realize the clamping and cutting of the forged special steel forgings. At this time, the clamping device cannot be adjusted according to the length of the special steel forgings, and when cutting, it needs to be constantly adjusted so that the middle part corresponds to the cutting part. Contents ...
Claims
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IPC IPC(8): B21J13/10B21K27/06B21J5/00
CPCB21J13/10B21K27/06B21J5/002
Inventor 刁海美
Owner 常州常超模具有限公司