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发表于 2006-8-31 10:43:00
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<p>who can tell me how to translate this article as below:</p><p>Back pressure背压</p><p>back pressure is the amount of pressure exerted on the material volume ahead of the screw, as the screw is pushed back in prepration for the next shot.背压是施加在螺杆前端的料的压力, 在螺杆被压回以准备下一次注射????????</p><p>setting the maximum back pressure设置最大的背压???(与我们学得教课书相背)</p><p>Typically, all machines have an adjustment for the maximum back pressure. 特别的,所有的机器都有一个对背压得调节量。This "screw-back" stage stops when the screw reaches a preset position. 这个螺杆回退的状态直到螺杆到达预设的位置后才停下来。 The stop position is manually set, based on the amount of material required to fill the mold's cavity and runner system.停下来的位置是认为设定的,根据填充模具型腔及流到系统所需的材料量来决定。 When the machine is ready to inject the shot, the screw then plunges the material ahead of the screw forward, injecting it into the mold.当注射机准备好注射后,螺杆会推着螺杆前端的料往前走,注进模具型腔。 while the injected material is cooled in the mold after the injection, the screw-back stage is re-initiated and the molding cycle repeated.当注射之后,注射的料冷却下来后的时候,螺杆后退的状态被初始化并且成型周期重复。</p> |
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