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High-temperature alloy difficult to deform and forging method thereof

A high-temperature alloy, hard-to-deform technology, applied in the direction of metal processing equipment, etc., can solve the problems of large product loss and poor quality, and achieve the effect of reducing product loss, uniform structure and low loss

Pending Publication Date: 2022-04-12
DAYE SPECIAL STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a hard-to-deform superalloy and its forging method to solve the problems of excessive product loss and poor quality in traditional hard-to-deform superalloy forging

Method used

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  • High-temperature alloy difficult to deform and forging method thereof
  • High-temperature alloy difficult to deform and forging method thereof

Examples

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Effect test

Embodiment 1

[0045] Implementation example 1 of the present invention utilizes GH4698 alloy φ638mm consumable ingot to produce φ265mm rod, the manufacturing process of φ250mm after lathing, the specification of required finished product: φ250mm. Include the following steps:

[0046] Step 1: Furnace loading of steel ingots: Put the φ638mm self-consumable steel ingots into the heating furnace according to the process requirements to heat the steel ingots. The heating temperature is 1140-1180°C, and the holding time is 3-5h. Among them, the mass percentage of each element composition of the steel ingots is: C: 0.05; Si: 0.04; Mn: 0.02; Cr: 14.56; Ni: Yu; Mo: 2.97; P: 0.003; S: 0.001; 0.54.

[0047] Step 2: Tooling preparation: before production on the 45MN fast forging machine, the forging anvil, chopping knife, and throwing tools must be fully prepared and installed on the tooling track of the fast forging machine. And the outer ones are forging anvil, chopping knife and throwing son in tu...

Embodiment 2

[0056] Implementation example 2 of the present invention utilizes GH4141 alloy φ508mm self-consumable ingot to produce φ265mm rod, the manufacturing process of φ250mm after lathing, the specification of required finished product: φ250mm. Include the following steps:

[0057] Step 1: Steel ingot loading: Put the φ508mm consumable steel ingot into the heating furnace according to the process requirements to heat the steel ingot. The heating temperature is 1150-1180°C, and the holding time is 2-3h. Among them, the mass percentage of each element composition of the steel ingot is: C: 0.08; Si: 0.03; Mn: 0.03; Cr: 19.03; Ni: Yu; Mo: 9.71; P: 0.002; S: 0.001; 0.44.

[0058] Step 2: Tooling preparation: before production on the 45MN fast forging machine, forging anvils, chopping knives, and throwing tools must be fully prepared and installed on the tooling track of the fast forging machine; And the outer ones are forging anvil, chopping knife and throwing son in turn.

[0059] Ste...

Embodiment 3

[0067] Example 3 of the present invention utilizes GH4698 alloy φ638mm self-consumable ingot to produce φ315mm rod, the manufacturing process of φ300mm after lathing, the specification of the required finished product: φ300mm. Include the following steps:

[0068] Step 1: Steel ingot loading: Put the φ638mm self-consumable steel ingot into the heating furnace according to the process requirements to heat the steel ingot. The heating temperature is 1140-1180°C, and the holding time is 3-5 hours. Among them, the mass percentage of each element composition of the steel ingot is: C: 0.05; Si: 0.04; Mn: 0.02; Cr: 14.56; Ni: Yu; Mo: 2.97; P: 0.003; ; Nb: 2.07; Cu: 0.02; Fe: 0.54.

[0069] Step 2: Tooling preparation: before production on the 45MN fast forging machine, the forging anvil, chopping knife, and throwing tools must be fully prepared and installed on the tooling track of the fast forging machine. And the outer ones are forging anvil, chopping knife and throwing son in tu...

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Abstract

The invention provides a difficult-to-deform high-temperature alloy and a forging method thereof. The forging method of the difficult-to-deform high-temperature alloy sequentially comprises the following working procedures of steel ingot heating, tool preparation, pre-cogging, jaw forging, material forming, jaw cutting, turning and inspection. By forging the special body jaw and optimizing the forging deformation process, the product loss is reduced, the yield is improved, and meanwhile, the flaw detection quality and the structure uniformity of the head and the tail of the difficult-to-deform high-temperature alloy product are improved, so that the yield of the difficult-to-deform high-temperature alloy is improved.

Description

technical field [0001] The invention belongs to the technical field of high-temperature alloy forging production, and in particular relates to a difficult-to-deform high-temperature alloy and a forging method thereof. Background technique [0002] Difficult-to-deform superalloys are prone to cracking during forging due to their narrow deformation temperature window, high-temperature deformation resistance, and poor high-temperature plasticity. Affected by the properties of the alloy, the finished alloy often has an abnormal grain structure. Often when one end is forged, the temperature has dropped beyond the window, and it is necessary to continue forging after reheating. Therefore, there is a phenomenon of empty burning at one end, resulting in uneven structure of the head, and sometimes it is also reflected in the quality of flaw detection. Therefore, forging a good jaw can improve forging efficiency, improve the quality of flaw detection, and improve the uniformity of th...

Claims

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Application Information

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IPC IPC(8): B21J5/00
Inventor 杨晓利贾余超王立苏超柯其棠雷应华曹政张志成高首磊陈君
Owner DAYE SPECIAL STEEL CO LTD
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