coating flaw 中文意思是什麼
coating flaw
解釋
塗層中的空隙-
Thermosetting powder coating of low - temperature curing type is a newly - developed powder coating which is used on the things that are not suitable for high - temperture baking. this type of powder coating opens up wider application by lowering curing temperature to 108 - 130. it can be used for surface coatings on such things as flaw detectors, auto water tanks, springs, electrical appliances with coils, instruments, equipment with tin welding seams. it can also be used on the products made of aluminum and magnesium materials, glass, plastics and wood etc
低溫固化型粉末塗料是針對那些不宜高溫烘烤的產品，而最新研製的新品種，它不僅具備一般粉末塗料的特徵，而且可以把固化溫度降低到108 - 130 ，從而拓寬了粉末塗料的應用領域；適用於擦傷機械、汽車水箱、發動機、彈簧、線圈電器、儀器儀表、錫焊條接縫設備、鉛鎂材質、玻璃、塑料、木材等製品的表面塗裝。 -
The results show that the heat preservation coating and its proper thickness are favorable to the enhancement of filling mold speed of aluminium alloy ; the higher the pouring temperature is and the larger the ratio of hollow areas of vertical pouring is, the faster the speed of filling mold of aluminium alloy is ; if the mold is too thick or too thin, it may decrease the speed of filling mold ; the proper length and the area of vertical pouring are favorable to the enhancement of the speed of filling mold ; although negatire - pressure may improve filling the speed, too high negatire - pressure may enlarge the flaw in casting
結果表明：保溫塗料及一定的塗層厚度有利於提高鋁液的充型速度；澆注溫度越高、直澆道空心面積率越大，鋁液充型速度越快；模樣厚度太厚或太薄，均會使鋁液充型速度降低；一定的直澆道長度及直澆道面積有利於提高鋁液的充型速度；施加負壓會使鋁液的充型速度大大提高，但負壓過大會增大鑄造缺陷。
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