在焊接过程中,气体和助焊剂渗入焊锡中,经常会出现空洞现象。外面完全被锡包裹着的空洞肉眼是检查不出来的。 当焊锡凝固后,空洞如果破裂则就成了一个喷孔。在焊锡表面的喷孔很不规则,若喷孔比较大时,焊接处的焊锡就很少,焊接强度降低,这样就产生了一个主要的缺陷。
喷孔板 ORIFICE PLATE
自动喷孔控制阀 Automatic jet control valve
氧枪喷孔 nozzle of oxygen lance
喷孔直径 orifice diameter
钥匙孔形喷孔 keyhole shaped orifice
四喷孔的 quadruple-spray
喷孔长径比 flyweight ; nozzle hole diameter ; [动力] length-diameter ratio of spray orifice ; length-diameter ratio of hole
喷孔夹角 [动力] angle between spray orifices
可调喷孔减温器 variable orifice desuperheater
到了午餐的时候,孩子们向动物的喷孔处扔石头,它的疲软的身体在岸边就像很多海藻一样摇摆。
By lunchtime, children were tossing rocks at the animal's blowhole while its limp body swayed in the shore break like so much seaweed.
这个油嘴的喷孔几乎被碳化物堵死。
The orifices of this nozzle are almost chocked up with carbide.
研究结果说明:喷孔直径影响着火位置。
The investigation results show that the injector orifice affected the points of ignition.
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