High temperature molybdenum alloy wire and its preparing method

A molybdenum alloy and alloy wire technology, applied in the field of high temperature molybdenum alloy wire and its preparation, can solve the problems of low strength, short service life and poor wear resistance of pure molybdenum wire, and achieve good product consistency, long service life, The effect of strong wear resistance

Inactive Publication Date: 2007-01-24
JINDUICHENG MOLYBDENUM CO LTD
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the metal processing industry, wire-cut molybdenum wire is required to have high strength, high wear resistance, low plasticity, and long service life. In contrast, pure molybdenum wire has low strength, poor wear resistance, high plasticity, and long service life. Short, can not meet the needs of users in the machinery industry

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Ammonium dimolybdate is used as raw material to add hydrogen to carry out a reduction to obtain molybdenum dioxide; weigh K according to weight percentage 2 SiO 3 and Al(NO 3 ) 3 Carry out dissolving standby; Molybdenum dioxide and K 2 SiO 3 , Al(NO 3 ) 3 The solution is doped in a double-cone vacuum drying doping pot, where the pressure of the air compressor pump is 0.2MPa, the drying temperature of the doping pot is 70°C, and the vacuum degree inside the doping pot needs to be controlled above 0.06MPa; Molybdenum dioxide is subjected to secondary hydrogen reduction in a four-tube high-temperature muffle furnace, and the hydrogen flow rate is 5.0M 3 / H, the loading capacity of the boat is 1.0kg / boat, and the speed of pushing the boat is 4 boats / 60min; Mo-Si-Al-K doped molybdenum powder is pressed by cold isostatic pressing to obtain 48mm Mo-Si-Al- K-doped molybdenum rods, the pressing pressure of cold isostatic pressing is 175MPa, the holding time is 10min, the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention is high temperature molybdenum alloy wire and its alloy consists of K 0.05- 1.0 wt%, Si 0.1-0.5 wt% and Al 0-0.05 weight %, except Mo, O and inevitable impurities. The alloy is prepared through double cone vacuum dry liquid-solid doping in the MoO2 stage, secondary reduction to preparing K, Si and Al doped Mo powder, pressing, sintering and other steps, and is further produced into molybdenum alloy wire of 0.5-0.8 mm diameter through press work and other steps. The molybdenum alloy wire has high tensile strength, high wear resistance, simple production process and other advantages.

Description

technical field [0001] A high-temperature molybdenum alloy wire and a preparation method thereof relate to a molybdenum alloy wire used for parts in special light bulbs and electric light source devices, metal processing cutting wires, and heating wires in kilns and a preparation method thereof. Background technique [0002] Because refractory metal molybdenum has high high temperature strength, good electrical and thermal conductivity, low expansion coefficient and easy processing, it is used in special bulbs and electric light source devices such as automotive tungsten halogen lamps, high-pressure sodium lamps, lighting tungsten halogen lamps, etc. Molybdenum wire is widely used to manufacture parts such as bulb hooks, core wires for winding filaments, guide rods, lead-out wires, and plastic brackets. It is widely used as wire-cut molybdenum wire in the metal processing industry, and in the kiln industry. It is used as heating wire for hydrogen furnace. However, in parts ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C22C27/04C22C1/05B22F3/16B21B37/74C21D1/26C21D11/00C22F1/18
Inventor 李大成卜春阳
Owner JINDUICHENG MOLYBDENUM CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap