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Precise forging-continuous rolling production technology of large and heavy single molybdenum rod

A production process and large unit weight technology, which is applied in the field of precision forging-continuous rolling production technology of large unit weight molybdenum rods, can solve problems such as large unit weight molybdenum rods that have not been found, and achieve product quality improvement, service life guarantee, and road The effect of the secondary extension factor

Active Publication Date: 2015-03-04
JINDUICHENG MOLYBDENUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, no relevant research has been found on the production of large single-weight molybdenum rods with a single weight of 45kg to 50kg using the precision forging-continuous rolling process.

Method used

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  • Precise forging-continuous rolling production technology of large and heavy single molybdenum rod
  • Precise forging-continuous rolling production technology of large and heavy single molybdenum rod
  • Precise forging-continuous rolling production technology of large and heavy single molybdenum rod

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] to combine figure 1 , the precision forging-continuous rolling production process of the large single weight molybdenum rod of the present embodiment comprises the following steps:

[0031] Step 1. The sintered molybdenum billet with a cross-sectional diameter of 85 mm is subjected to billet forging with a precision forging machine. The billet forging adopts an axially elongated forging method and is completed in three passes. Each pass is forged The deformation data of the forging are shown in Table 1. The initial forging temperature of the billet forging is 1450°C, and the final forging temperature of the billet forging is 1150°C to obtain a precision forged billet with a cross-sectional diameter of 48mm; the precision forging machine can be adopted by Austria GFM Precision forging machines produced by the company;

[0032] Table 1 The deformation data of blank forging in this embodiment

[0033] Forging pass

first pass

second pass

third pass

...

Embodiment 2

[0045] to combine figure 1 , the precision forging-continuous rolling production process of the large single weight molybdenum rod of the present embodiment comprises the following steps:

[0046] Step 1. The sintered molybdenum billet with a cross-sectional diameter of 88mm is subjected to billet forging by using a precision forging machine. The billet forging adopts the forging method of axial elongation, and is completed in three passes. Each pass is forged The deformation amount data of the blank forging is shown in Table 4. The initial forging temperature of the blank forging is 1480°C, and the final forging temperature of the blank forging is 1180°C to obtain a precision forged billet with a cross-sectional diameter of 48.5mm; the precision forging machine can be adopted from Austria Precision forging machine produced by GFM;

[0047] Table 4 Deformation data of billet forging in this embodiment

[0048] Forging pass

[0049] Step 2. Using an intermediate frequ...

Embodiment 3

[0059] combine figure 1 , the precision forging-continuous rolling production process of the large single weight molybdenum rod of the present embodiment comprises the following steps:

[0060] Step 1. The sintered molybdenum billet with a cross-sectional diameter of 90mm is subjected to billet forging by using a precision forging machine. The billet forging adopts the forging method of axial elongation, and is completed in three passes. Each pass of billet forging The data of the deformation amount is shown in Table 7. The initial forging temperature of the billet forging is 1500°C, and the final forging temperature of the billet forging is 1200°C to obtain a precision forged billet with a cross-sectional diameter of 49mm; the precision forging machine can adopt Austria GFM Precision forging machines produced by the company;

[0061] Table 7 Deformation data of billet forging in this embodiment

[0062] Forging pass

first pass

second pass

third pass

...

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Abstract

The invention provides a precise forging-continuous rolling production technology of a large and heavy single molybdenum rod. The production technology comprises the following steps of: 1, carrying out billet forging on the molybdenum rod by a precision forging machine to obtain a precision forging bar; 2, heating the precision forging bar; 3, rolling for the first time by a Y-shaped three-roller continuous mill to obtain a rolled molybdenum rod; 4, heating the rolled molybdenum rod; and 5, rolling for the second time by the Y-shaped three-roller continuous mill and obtaining the large and heavy single molybdenum rod of which the piece weight is 45-50kg. Deep processing of a molybdenum bar is successfully achieved by setting and optimizing each parameter in precision forging, thermal treatment and continuous rolling processes; the large and heavy single molybdenum rod, which is suitable for subsequent wire drawing, and of which the piece weight is 45-50kg, is finally produced; and the production efficiency is obviously improved. The piece weight of the molybdenum rod produced by the production technology is much greater than that of the molybdenum rod produced by a traditional technology; and the precise forging-continuous rolling production technology has no welding spot on the whole, and is even in internal organization, high in product quality and suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of molybdenum metal material processing, and in particular relates to a precision forging-continuous rolling production process of large single weight molybdenum rods. Background technique [0002] Molybdenum wire is generally processed from molybdenum rods, and the traditional production methods of molybdenum rods in China mainly include "sintered molybdenum rods rotary hammer blanking-drawing" method and "sintered molybdenum rod rolling blanking-drawing" method. Compared with similar foreign molybdenum rod products, the single weight of the molybdenum rod produced by the "sintered molybdenum rod rotary hammer blanking-drawing" method, that is, the weight of a single molybdenum rod is only about 1kg, and the "sintered molybdenum rod rolling The unit weight of the molybdenum rod produced by the billet-drawing method is less than 14kg; and the molybdenum rod produced by the traditional method has a small unit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/00B21J5/06B21B1/16B21B37/74
Inventor 任宝江杨德武吴兴刚惠保卫苏晓逯雷仙斌华高永军蒙笠朱峰杨政伟
Owner JINDUICHENG MOLYBDENUM CO LTD
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