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真空爐加熱及保溫材質(zhì)的選擇

2023/3/8 10:57:47

真空爐根據(jù)不同使用溫度,可選擇不同的材質(zhì)的加熱元件及保溫隔熱層,常用的加熱元件材質(zhì)有耐熱鋼(Cr20Ni80),高純石墨,鉬及合金等,各材質(zhì)使用的溫度范圍如下,除上述材質(zhì)的選擇外,還需通過(guò)對(duì)長(zhǎng)期使用條件下的能耗,穩(wěn)定性等方面綜合考慮。

工作溫度                 Operation Temperature

加熱元件選擇                     Heating Element Selection

隔熱層選擇Insulation Layer Selection

800℃及以下

800and below

高溫鎳鉻合金                  High temperature nickel-chromium alloy

不銹鋼Stainless steel

800-950

高溫鎳鉻合金Cr20Ni80        High temperature nickel-chromium alloy

耐熱鋼+不銹鋼  Heat resistant steel + stainless steel

耐熱鋼+石墨氈 Heat resistant steel + graphite felt

950-1100

金屬鉬或耐熱鋼            Molybdenum metal or heat resistant steel

金屬鉬+不銹鋼 Molybdenum metal + stainless steel

金屬鉬+石墨氈  Molybdenum metal + graphite felt

1100-1300

鉬鑭合金          Molybdenum-lanthanum alloy

鉬鑭合金+不銹鋼                   Molybdenum-lanthanum alloy+ stainless steel

高純石墨 High purity graphite

石墨軟氈+石墨硬氈 Graphite soft felt + Graphite hard felt

1300-1600

鉬鑭合金Molybdenum-lanthanum alloy

鉬鑭合金+不銹鋼                           Molybdenum-lanthanum alloy +  stainless steel

等靜壓石墨 Isostatic pressed graphite

石墨軟氈+石墨硬氈 Graphite soft felt + Graphite hard felt

鎢合金Tungsten alloy

鎢合金+鉬鑭合金+不銹鋼 Tungsten alloy + Molybdenum-lanthanum alloy +stainless steel

1600-2100

等靜壓石墨Isostatic pressed graphite

石墨軟氈+石墨硬氈Graphite soft felt + Graphite hard felt

Tantalum

+鉬鑭合金+不銹鋼Tantalum+Molybdenum-lanthanum alloy+Stainless steel


end

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