sand defects 中文意思是什麼
sand defects
解釋
型砂造成的缺陷-
The quality of furan sand castings is usually better than clay sand castings, however, some defects are also very easy take place with furan sand castings such as blow hole, metal penetration, veining, cracking, slag inclusion, hardness too low, surface recarburation, surface sulphuration, nodularity degeneration etc, which were usually caused by improper raw materials selection, improper method design, incorrect moulding or / and core - making
摘要呋喃樹脂砂鑄件質量一般比黏土砂鑄件好，但如果原材料選擇、工藝設計、造型和制芯操作不當，也會產生氣孔、粘砂、脈紋、裂紋，夾渣、硬度不足、滲碳、滲硫和球化不良等鑄造缺陷。 -
Abstract : using furan sand to produce heavy diesel engine block and crankshaft eliminated defects of castings including “ penetration / burn - in ”, “ shrinkage porosity ”, “ big dimension deviation ” of cylinder block, “ penetration / bum - in ”, “ misrun ” and “ run - out ” of crankshaft, and so on
文摘:樹脂砂鑄造工藝應用於大型球墨鑄鐵件整體鑄造柴油機缸體、曲軸生產上消除整鑄缸體「粘砂」 、 「縮松」 、 「尺寸偏差大」及曲軸「粘砂」 、 「澆不足」 、 「漏鐵液」等鑄造缺陷，具有明顯的效果。 -
This model of valve overcomes such defects with the motor valve, piston - type electromagnetic valve as the post - wear defective closure due to the mechanical movement, the soft membrane full of elasticity, the balance hole can not close water because the foreign matters and mud sand accumulate and block it up etc., the highly effective use of the unique circuit greatly raises the reliability of the switch, extensively used for ic card watermeter, infrared induced sanitary utensils, etc
Fck - 118 ：進水口出水口為1寸25內螺紋該型閥克服了如電機閥活塞式電磁閥機械運動磨損后的關閉不良。軟性膜片富有彈性，平衡小孔不會因雜質與泥沙的淤積堵塞使其關不住水，獨特線圈磁路的高效利用大大提高了閥開關可靠性，廣泛用於ic卡水表紅外線感應潔具等自動控水系統。
分享友人