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另一種是較為成熟的濕搪工藝。在整個(gè)生產(chǎn)過程中,管子始終保持垂直,不變形。相比靜電搪瓷,濕法搪瓷附著力更強(qiáng),采用兩搪兩燒工藝,充分保證了搪瓷釉的厚度和耐腐蝕性。
需要注意的是,搪瓷釉配方可以根據(jù)鍋爐燃燒材料的不同配置進(jìn)行調(diào)配,滿足不同用戶的需求。目前,市場(chǎng)上主要使用煤炭、天然氣和電力作為能源。煤的能源成本低,但溫度和燒結(jié)速度不可控,對(duì)搪瓷管道的質(zhì)量影響很大,而且煤燃燒過程中產(chǎn)生的硫化物和碳化物質(zhì)會(huì)對(duì)燃燒的搪瓷管道造成一定程度的腐蝕和破壞,雖然天然氣的溫度可控,但仍然無法避免天然氣燃燒過程中硫化物和碳化物質(zhì)對(duì)搪瓷管道的腐蝕。