鉑金涂層熱電偶保護(hù)管（Platinum coated thermocouple protection tube）
一般玻璃窯爐常規(guī)測(cè)量溫度都使用ＷＲＲ－１３２.Ｂ.鉑銠３０－鉑銠６［雙鉑銠］熱電偶，這種熱電偶的保護(hù)管是剛玉材料，長(zhǎng)期工作溫度１６００度，剛玉這種材料熔點(diǎn)很高，達(dá)２０５０度，菏重軟化點(diǎn)也在１８００度以上，而玻璃窯的溫度一般在１３５０－－１６００度，遠(yuǎn)在軟化點(diǎn)和熔點(diǎn)以下，可是，幾乎很少有使用壽命超過(guò)３個(gè)月的，都是保護(hù)管底蝕穿，我們知道，一支Ｂ型熱電偶的價(jià)格要幾千元，損失很大，原因不是保護(hù)管不耐高溫，而是剛玉保護(hù)管這種材料不適合玻璃／陶瓷熔塊的環(huán)境，剛玉的化學(xué)成分是三氧化二鋁，這種材料很容易和玻璃原料中的低熔點(diǎn)物質(zhì)發(fā)生低溫共熔，我們這項(xiàng)專利技術(shù)采用剛玉保護(hù)管表面涂鍍鉑金保護(hù)層專門克服玻璃窯內(nèi)和陶瓷熔塊窯內(nèi)的強(qiáng)腐蝕性，有效解決剛玉管熱電偶的使用壽命問(wèn)題，替代純鉑金護(hù)管，顯著節(jié)約生產(chǎn)成本。
The conventional temperature measurement in general glass furnace using WRR - 132.B. 30 - 6 Double Platinum Rhodium Platinum thermocouple thermocouple protection:, this tube is corundum materials, long-term working temperature of 1600 degrees, the corundum material with a high melting point, up to 2050 degrees, Holland weight softening point are above 1800 degrees, while the glass kiln temperature in 1350 - 1600 degrees, far below the melting point and softening point, but rarely have the life of more than 3 months, is to protect the bottom of the pipe corrosion wear, we know that a type B thermocouple price to thousands of yuan, the reason is not a great loss, but not high temperature protection tube, corundum protective tube this material is not suitable for glass / ceramic frit environment, chemical composition of corundum is three two aluminum oxide, this material is very easy and glass raw materials The material of low melting point eutectic, we use the patented technology of corundum coated platinum protection tube protective layer specifically to overcome the strong corrosive glass kiln and ceramic frit kiln, effectively solve the problem of corundum tube thermocouple life, instead of pure platinum tube, significantly save the cost of production. |
