Casting method of cement mortar ball valve body with high wear resistance
A cement mortar, high wear-resistant technology, used in casting molding equipment, casting molds, casting mold components, etc. Problems such as poor quality stability, to achieve good surface protection, appearance quality, good performance, and excellent wear resistance.
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[0013] A method for casting a high wear-resistant cement mortar ball valve body, comprising the following steps:
[0014] (1) Prepare pouring liquid, wherein the weight percentage of the chemical composition of the pouring liquid is as follows: C: 0.22%, Si: 0.25%, Mn: 0.60%, Cr: 1.5%, Nb: 0.05%, Mo: 0.30%, P: 0.03 %, S: 0.02%, the balance is Fe, each raw material is smelted in an intermediate frequency induction furnace at 1580°C, and the casting solution is obtained after adjusting the chemical composition;
[0015] (2) Prepare cast-infiltrated coatings, wherein the cast-infiltrated coatings are made of the following raw materials in weight (kg): 200-mesh ferrovanadium powder 40, 200-mesh boron nitride 5, nano-graphite powder 1, polyvinyl alcohol 0.5, acrylic acid 0.1, Ammonium persulfate 0.01, lithium silicate 2, sodium fluoride 1, carbon nanotube 1, silane coupling agent KH-550 0.5, allyl glycidyl ether 0.1; Tube, nano-graphite powder, allyl glycidyl ether and silane coup...
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