发明申请
US20120160361A1 Construction and Manufacturing of Long Tubes with Embedded Corrosion- and Wear-Resistant Coatings Applied Directly to the Interior Surfaces 审中-公开
具有嵌入式耐腐蚀和耐磨涂层的长管的施工和制造直接应用于内部表面

Construction and Manufacturing of Long Tubes with Embedded Corrosion- and Wear-Resistant Coatings Applied Directly to the Interior Surfaces
摘要:
The invention relates to the manufacture of protective coatings onto interior surface of long-length tubes or pipes having relatively small diameter, in order to prevent corrosion-, erosion-, or wear damage of said surface. The method for manufacturing a tube comprising an embedded corrosion-resistant and wear-resistant-coating, wherein the tube consists of an external tube layer, a bond layer, a corrosion- and wear-resistant coating, and an internal tube layer, includes: depositing the corrosion- and wear-resistant coating (CWRC) onto outer surface of the internal tube, depositing a bonding material onto CWRC, inserting the internal tube with deposited CWRC and bond material into the external tube to provide an embedded CWRC between external and internal tube layers, and bonding both tubes with the interior CWRC in one solid structure. A crack-healing compound or release compound is additionally deposited onto internal tube before CWRC, which is preferably alumina ceramic or hard thermal-sprayed alloy. CWRC can be multilayer coating that includes said internal tube embedded between CWRC layers.
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