scum是什么意思

用法例句

Analysis of factors influencing slag defects in ductile iron castings;

球铁件夹渣缺陷形成的影响因素分析

Solution to the slag of wedge surface sealing in brass valve;

解决铸造黄铜闸板密封面夹渣缺陷的措施

The results show that local slag of the parent pipe is the main cause of the bend cracking.

结果表明,弯管母管局部存在的夹渣是造成弯管开裂的主要原因,而弯管热煨温度偏高,造成外弧侧材料产生过热,管体材料冲击韧性降低,加速了外弧侧管体裂纹失稳扩展。

Based analysis for mechanism of inclusion defect in eletroslag billet of H.

通过对高速钢电渣锭夹渣缺陷机理分析,采取合理设定重熔工艺参数和重熔前进行捅渣操作,减少了结晶器挂渣现象,大幅度减少了电渣锭夹渣缺陷。

The results indicated that the linear defects resulted from the big inclusions such as SiO_2,CaO,Al_2O_3 and Na_2O.

针对45#钢螺栓表面线状缺陷进行了低倍、金相、电子探针等检测分析,结果表明,线状缺陷由大型夹渣造成,其主要成分为SiO2、CaO、Al2O3、Na2O,系连铸过程中酸性钢水中包覆盖剂卷入所致。

A certain numbers of gas porosity and inclusion defects occur in production of X80 grade φ1 219 mm×18.

4 mm螺旋埋弧焊管生产过程中产生一定量的气孔和夹渣缺陷,分别从成型稳定性、卷板质量、焊接规范、焊剂等方面对其形成原因进行了分析,并提出了一些应对措施。

The reasons of regular entrapped slag of rhe cast steel wheel poured continuously by bottom pouring ladle were explained by using hydrodynamics.

用流体力学原理解释了用底注包连续浇注铸钢车轮过程中产生规律性夹渣缺陷的原因——是由于钢液在孔口出流时产生的真空,使钢液中的气体连同它所吸附的氧化渣一起析出附着在水口砖表面上,当多到一定程度脱落流入铸型中造成的。

In combination with characteristics of Baosteel' s process and equipment, technologies of controlling surface entrapped slag,inside cracks and anti-slab fracture are introduced.

主要叙述了板坯连铸生产65Mn高碳锯片钢的过程控制影响因素,同时结合宝钢工艺和装备特点介绍了控制高碳锯片钢表面夹渣、内部裂纹及防止铸坯断裂的工艺技术。

It is found that the rejection is mainly due to metallurgical quality,such as chemical composition,slag inclusion,gas channel,grain size,etc.

分析了用电解铝液直接生产铸轧板的质量问题以及铸轧板质量缺陷的影响因素,认为造成铸轧板废品的主要原因就是冶金质量,即冶炼过程所引起的化学成分、夹渣、气道、晶粒度等废品,分别论述了化学成分、夹渣物和气孔、晶粒度、熔炼温度和时间的控制措施。

Analysis electrolysis aluminum liquid directly producing cast-rolling the quality problem in stock and the feedback opinion of user,it is metallurgical quality to think that cause the major reason that cast-rolling stock reject,smelt the chemical composition aroused by course and the rejects such as slag inclusion,angry road and the degree of crystal grain.

分析电解铝液直接生产铸轧板中的质量问题和用户的反馈意见,认为造成铸轧板废品的主要原因是冶金质量,即冶炼过程所引起的化学成分、夹渣、气道、晶粒度等废品。

The mechanism of major defects on stainless steel billet was investigated, which included surface depression, crack, slag inclusion.

针对不锈钢中镍、铬、钛等合金元素的作用,分析了不锈钢的组成、凝固特征、高温热性能、力学性能与普碳钢的差异以及不锈钢连铸坯表面凹陷、裂纹、夹渣等表面缺陷产生的机理。

The forming reasons of blowhole and cinder inclusion in cast steel wheel were analyzed, and the correspounding precaution measures were proposed which have been verified in producing practice.

分析了铸钢车轮件气孔、夹渣缺陷的形成原因,提出了相应的解决措施,并在生产中得到验证,使废品率显著下降。

Slag, blowholes, and paint on unfused regions were observed at the welded junctions.

在焊接处看到了夹渣，气孔及未熔透区的油漆。

Any severe deficiency of welding seams surface like cracks, pores, slags is forbidden.

焊缝表面不得有裂纹,气孔,夹渣等严重缺陷.

Internal defects:lack of penetration,lack of fusion,slag,gas pole,carck,overheating.

内部缺陷：未焊透、未熔合、夹渣、气孔、裂纹、过热。

Methods and causes of surface slag on cast-rolling strip

铝铸轧带坯上表面夹渣的原因及其预防措施

Gas Porosity and Inclusion Occur in Production of X80 Heavy Wall Thickness Pipe

X80级厚壁焊管生产中的气孔和夹渣原因分析

Centrifugal casting，compact structure，free from pinhole porosity and slag，smooth surface and even wall thickness.

高速离心铸造,组织致密,无砂眼、夹渣，表面光滑、壁厚均匀。

Hence lack of fusion and slag would exist at the weld root and create a large initial crack condition.

因而未熔透及夹渣存在于焊缝棍部，并造成大的初始裂纹条件。

Conclusion The reason is that waste water was discharged before the precipitation.

结论废水未经沉淀，夹渣排放；某稀土厂废水是污染负荷的主要因子。

Steel cutting surface or shear surface should have no cracks, slag, stratification and the lack of greater than 1 mm Prism.

钢材切割面或剪切面应无裂纹、夹渣、分层和大于1?的缺棱。

Analysis on Entrapped Slag Defect of Cast Steel Wheel Poured Continuously by Bottom Pouring Ladle

用底注包连续浇注铸钢车轮产生夹渣缺陷的分析

Dirty steel due to entrapment of slag or pieces of refractory.

因夹杂炉渣或耐火材料颗粒而造成的不纯净钢。

AN INVESTIGATION OF MECHANISM ON THE REMOVAL OF OXIDE INCLUSIONS DURING ESR PROCESS

电渣重熔过程中氧化物夹杂去除机理的探讨

Control of Content and Composition of Nonmetallic Inclusion in ESR Steel

电渣重熔钢中非金属夹杂物含量及成分的控制

BEHAVIOR OF NON-METALLIC INCLUSIONS IN AN ELECTRIC RESISTANCE ALLOY DURING ESR

非金属夹杂物在电渣重熔电热合金时的行为

Experimental Study on 12CaO·7Al_2O_3 Base Refining Slag of Desulfurizaiton and Removal Inclusion

12CaO·7Al_2O_3基无氟精炼渣脱硫及去除夹杂物实验研究

Study on Non-Metallic Inclusions in Maraging Steel Produced by Electroslag Remelting Process

电渣重熔马氏体时效钢中的非金属夹杂物研究

INFLUENCE OF CASTING POWDER TO SURFACE INCLUSIONS OF MEDIUM PLATE

连铸保护渣性能对中板表面夹杂缺陷的影响

A Study on Kinetics of TiO_2 Inclusion Absorbed by Mold Fluxes

结晶器保护渣吸收TiO_2夹杂物的动力学研究