Ceramics particle strengthened composite material lining metal tube and manufacturing method thereof

[0040] Refer to attached figure 1 , weigh 50 kg of 180-mesh industrial alumina particles, immerse in an aqueous solution containing KH-550 silane coupling agent with a mass fraction of 5%, stir for 1 hour, filter and dry; 1000 parts of 4,4'-diphenyl A mixture of methane diisocyanate (MDI) and 500 parts of polyester diol as a polyurethane prepolymer, mixed with the above-mentioned pretreated alumina particles, stirred for 2 hours and then added 80 parts of 1,4-butanediol (BD) , after uniform stirring, the polyurethane liquid castable is obtained.

[0041] refer to figure 2 , image 3 and Figure 4 , the manufacture of composite material-lined metal pipes: first evenly paint a layer of rubber-metal adhesive on the inner wall of the stainless steel seamless steel pipe, that is, the outer casing 1, and then place it on four rollers 5 in a large oven, among which A drum rotates at 300 rpm. When the jacket steel pipe is heated to 90°C, keep the constant temperature, extend int...

[0044] Refer to attachedfigure 1 , weighing 100 kg of 300-mesh industrial quartz sand particles, immersed in an aqueous solution containing 5% KH-550 silane coupling agent, stirred for 1 hour, filtered and dried; 1000 parts of M5050 type Polyurethane prepolymer (the main component is 4,4'-diphenylmethane diisocyanate), mixed with the above-mentioned pretreated quartz sand particles, stirred for 1.5 hours and then added 50 parts of 1,4-butanediol (BD), After uniform stirring, the polyurethane liquid castable is prepared.

[0045] Coat the inner wall of stainless steel seamless steel pipe evenly with 218 type rubber metal adhesive from Chemlok, and then place it on four rollers in a large oven, one of which rotates at 500 rpm turn. When the jacket steel pipe is heated to 100°C, keep the temperature constant, extend into the pouring pipe with slots below, inject the liquid castable into the pouring pipe under a certain pressure, make the liquid castable squeeze out along the slo...