论文部分内容阅读
一、引言1.本条件只适用于压力为25公斤/厘米~2的低压及压力为63公斤/厘米~2的中压压力伐的产品出厂验收,至于新产品的试制鉴定及科研性试验不包括在本条件内。2.验收项目分必检及抽检项目,必检项目是指每一个产品都要进行检查的项目,抽检项目是指每批中抽检5%但每批(该批少于50个者)至少要抽检3个。3.压力的测量一般用普通压力表,其量程在中压时应采用100公斤/厘米~2,在低压时应采用40公斤/厘米~2,精度等级宜用1.5级。在压力表前一般不应附加阻尼以正确反应压力振摆值。
I. Introduction 1. This condition applies only to the pressure of 25 kg / cm ~ 2 low pressure and pressure of 63 kg / cm ~ 2 medium-pressure cutting products manufactured acceptance, as new product trial identification and scientific research test Included in this condition. 2. Acceptance items must seized and sampling projects, the project will be seized for each product to be inspected items, sampling project refers to each batch sampling 5% but each batch (the batch of less than 50) at least Sampling 3. 3. Pressure measurement is generally used ordinary pressure gauge, the range should be used at medium pressure 100 kg / cm ~ 2, at low pressure should be used 40 kg / cm ~ 2, accuracy class should be 1.5. In the pressure gauge before the general should not add damping to correctly reflect the pressure swing value.