reject ratio

improve constantly technique to increase the productive efficiency, shorten the production cycle and reduce the reject ratio.

不断改进工艺以提高生产效率，降低生产周期和降低报废率。

we adopt measures such as selection of core sand, strengthening exhaust property of sand core, control of pouring temperature and speed to prevent blowhole. meanwhile, reject ratio containing the blowhole is controlled within 1%.

通过正确选用芯砂，加强砂芯的排气，严格控制浇注温度、速度等工艺措施，使气孔缺陷得到有效控制，气孔废品率在1%以下。

and the reject ratio in the production of the down nozzle is low and close to zero.

在下水口的生产中废品率极低，接近为零。

The casting reject ratio of cylinder block caused by crankcase core is controlled below 0.25 % at present.

目前,我厂在气缸体的生产中,由于曲轴箱壳芯原因造成的缸体铸件废品可控制在0.25%以内.

investigation of reducing casting reject ratio of 170 type refrigeration compressor cylinder sleeve by centrifugal casting

降低170型制冷压缩机缸套离心铸造废品率的研究

based on the design value for polymer reject produced during grade transition period in polyethylene plant, this paper established a model for predicting the reject ratio, with average error of 10.45% for homopolymer grades and 5.07% for copolymer grades.

基于工厂聚乙烯树脂牌号切换产生废料量的设计值，建立了废料量的预测模型，其误差仅为10.45%（均聚牌号）和5.07%（共聚牌号）；

pressure drop ratio and reject ratio are important operational parameters in hydrocyclones for oily water separation.

压降比和分流比是油水分离旋流器的重要操作参数，我们通过全因素试验研究了这两个参数之间的关系，以及结构参数对该关系的影响。

the aims of quality control are to improve the ability of quality control timely and reduce reject ratio.

无论怎样的质量管理模式，最终目的是提高企业对产品质量的适时控制能力，尽可能将缺陷消除在萌芽阶段，从而降低不合格品率。

the separation efficiency of the hydrocyclone does not change when the flow rate is in a special range or when the reject ratio exceeds 1%.

在一定流量范围内，水力旋流器的分离效率不变。分流比大于1%时，旋流器的分离效率基本不变。