텅스텐 희토류 전극
Material Introduction
텅스텐 희토류 합금은 텅스텐과 희토류 산화물로 구성된 합금으로, 희토류 산화물 첨가량은 보통 0.3%에서 4.0%(중량비)이며, 이는 합금 내에서 분산 입자로 존재해 고온에서 재료를 강화하고 재결정 온도와 고온 크리프 성능을 향상시킵니다.
또한, 이 합금은 우수한 전자 방출 성능, 아크 소모 저항성, 그리고 뛰어난 아크 안정성과 제어성을 제공하며, 주로 아크 용접, 절단, 개시용 전극으로 활용되고 특정 전극 특성에 따라 다양한 조건에서 사용됩니다.
Specifications and Performance
제품 표준:
- ISO 6848
- ANSI/AWS A5.12/A5.A2M-98
제품 사양:
- 직경: 0.5~30 mm
- 길이: 150 mm, 175 mm, 178 mm 또는 고객 맞춤 길이
Name | Grade | Current | Welding process | Characteristics | Applications |
Composite tungsten electrode | WR20 | Composite tungsten electrode | Automatic welding, robot welding, cold welding, aluminum welding, etc. | Easy to start arc, good arc start-up performance and stability, a good replacement for thoriated tungsten | Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
Lanthanum tungsten electrode | WL10 | Small/Large DC current | Small/Large DC current | Easy arc start-up and stability, low electron work function, able to replace thoriated tungsten at low currents | Non-alloy and low-alloy steel, stainless steel, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
Cerium tungsten electrode | WC20 | Small DC current | Small/Large DC current | Easy arc start-up and stability, low electron work function, able to replace thoriated tungsten at low currents | Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
Thoriated tungsten electrode | WT10 | Large DC current | Small/Large DC current | Easy arc start-up and stability, good high temperature performance, high current and long service life, but with a certain amount of radioactivity | Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
Yttrium tungsten electrode | WY20 | Large DC current | Automatic and robot welding | Strong penetration, narrow arc beam, high degree of compression; mainly used in the military and aerospace industries. | Non-alloy and low-alloy steel, stainless steel, aluminum alloy, magnesium alloy, titanium alloy, nickel alloy, copper alloy, thermal spraying, cathodes and anodes for special light sources. |
Fabrication Process
텅스텐 희토류 합금은 분말 야금법으로 만들어지며, 분말 준비부터 최종 제품까지 모든 과정이 철저히 관리됩니다.
Advantage
- 텅스텐에 희토류 산화물을 첨가하면 재결정 온도가 상승하고 전자 방출 에너지가 감소해 열전자 방출, 내열성, 가공성이 향상됩니다.