采用激冷斜槽法和低过热法进行浇注料坯的试验,在试验中研究了不同浇注温度和冷却板倾斜角度对所浇注料坯的微观组织的影响。
The experience was conducted using cooling slope and low superheat processes, effects of pouring temperature and the degree of slope on the billet's structure were researched.
结果表明,水龙头阀体开裂是由于存在过热造成的晶粒粗大、魏氏组织、铸造疏松等缺陷引起的脆性开裂。
The results show that the cracking of the tap valve is brittle crack, which is due to overheat to cause the formation of defects, such as coarse grains, Widmanstatten structure and porosity.
油价不断上扬,石油输出国家组织近期也承认无力通过增加原油供应的方法使得过热的市场价格趋于平缓,但这对改变现状是毫无作用的。
It just keeps on climbing, not helped by the latest admission from OPEC that it's powerless to cool the overheated market by increasing crude supplies.
高温蠕变损伤是由于过热引起的,过热使金相组织内部产生蠕变空洞,在热应力下空洞扩展连接而形成蠕变裂纹。
Creep damage is mainly caused by superheat. Because of superheat, creep cavities are formed inside microstructure, under heat stress condition, growth and join of cavities induce creep cracking.
通过热处理手段获得可区分晶粒尺度和片层厚度的全片层组织。
The fully lamellar microstructures with different grain size and lamellar spacing were obtained by heat treatment.
而一般过热的锻材可通过高温快冷正火处理来改善其显微组织,从而获得NADCA (ASTM)标准的合格级别组织。
Generally the microstructure of the overheated forging can be improved by means of high temperature fast cooling normalizing so that the qualified level from NADCA and ASTM standards can be obtained.
具有马氏体基体的高铬铸铁,有理想的耐磨组织,但通常要通过热处理才能得到。
However, the martensitic matrix of high-chromium cast iron has excellent abrasion-resistant tissues, which used to be obtained only by means of heat treatment.
也可通过热线电话预约组织团体活动(心理沙龙)。
The group activity (psychological salon) can also be reserved via the hotline.
熔体过热处理是细化组织提高合金力学性能的有效途径。
Molten melt superheat treatment is an effective means for microstructure refinement and advancement of alloy mechanical property.
通过热模拟实验,考察了在不同变形温度和不同奥氏体晶粒尺寸等条件下保温对低碳钢形变后组织演变的影响。
The influence of deforming temperature as well as primal austenite grain sizes and holding time on the microstructure of transformation were investigated.
即叶轮断裂是由于锻造加热时温度控制不好导致过热,在随后的淬火工序中又因加热温度过低,组织固溶强化效果差等综合原因所致。
The results show that the wheel hub cracking during radial impact testing was caused by excessive content of magnesium in the alloy as well as the overheating of the alloy during the solution process.
结果表明 ,轮毂在径向冲击检测时开裂的主要原因是镁含量偏高 ,以及热处理加热温度高造成组织过热所致。
The results show that the wheel hub cracking during radial impact testing was caused by excessive content of magnesium in the alloy as well as the overheating of the alloy during the solution process.
粒状贝氏体及粒状组织中的M-A岛不是该钢焊接热影响区过热区脆化的原因。
The M-A units in granular bainite and granular structure are not the cause of embrittlement.
随着熔体过热温度的升高, 凝固组织中初生硅形状由多边形向星形及树枝状转变。
At higher overheating temperature, the shape of primary silicon becomes the star-shape and tree-shape.
发现,HQ70钢过热区粗大非平衡组织,经第二次快速加热到正火区,并没有出现通常所认为的“细化品粒”现象,而是出现了“组织遗传”。
It was discovered that structural heredity phenomenon took place in the non-equilibrium structure of overheated zone of HQ70 steel after another quick heating.
在此基础上还模拟了不同过热度下铸坯的凝固组织。
Otherwise, the solidification structure for different superheat was simulated.
健康保护组织发言人表示,正呼吁受害人士透过热线预约诊证,以为她们提供建议、辅导和验血服务。
The spokesman said that health protection organizations, are calling for victims through the hotline booking appointment card, provided that their proposals, blood tests and counselling services.
经脉线下深部组织的热能通过热传导的方式由里向外扩散至皮肤表面,是产生循经红外辐射轨迹的一个重要原因。
It is obvious that the thermal energy in deep tissue may conduct outwards to skin surface. This may be an important factor for the formation of infrared radiant track along meridian course.
通过热模拟试验和工业性试验,研究了Q235钢微观组织演变规律及其与力学性能的关系。
Microstructure evolution and the relationship between microstructure and mechanical properties of Q235 steel were studied by thermal simulation and industrial tests.
包括多种材料,如塑胶包装,水溶性塑胶箔和稀松组织织物,它们都经过相应的化学处理,并通过热作用进行分解。
Includes a variety of substances, such as plastic wrap, water-soluble plastic foil and open-weave fabric that has been chemically treated to disintegrate with the application of heat.
研究了不同的过热度对电脉冲孕育处理Al-5%Cu合金凝固组织的影响。
The influence of the different superheat degrees on solidification structure of the Al-5%Cu alloy by electric pulse modification was studied.
本文通过热轧试验,利用扫描电镜、TEM观察和EBSD技术等分析显微组织与力学性能之间的关系。
In this paper, hot-rolling tests, using scanning electron microscopy, TEM observation and analysis of EBSD technology, microstructure and mechanical properties relationship.
在实验室通过热轧实验,研究了热轧双相钢在奥氏体再结晶区和未再结晶区变形和卷取温度对高强热轧双相钢组织细化和力学性能的影响。
The effect of the finishing rolling temperature on the microstructure refinement and mechanical properties of the hot rolled dual-phase steel were studied at laboratory.
高温高压法加速腐蚀。结果表明,C4镍基合金热影响区奥氏体晶粒长大,X60钢过热区为大块铁素体组织。
The results show that the coarse austenite grain in heat affect zone (HAZ) of Ni-base alloy is observed, mass ferrite appears in HAZ of X60 steel.
研究结果表明:在不预热条件下,用KD286焊补钢轨,焊缝组织为柱状奥氏体组织,熔合区和过热区不可避免地产生脆硬的马氏体组织。
The results show that:under the no preheating condition, the microstructure of weld metal is columnar austenitic, and brittle martensite exists in the fusion zone and over-heated zone unavoidably.
热速处理后组织部分保留了高温过热时的特性,从而使镁合金的力学性能和铸件质量得到提高。
The microstructure of AZ91 alloy keeps some characteristics of the high temperature melt after thermal rate treatment, which improves the mechanical properties and casting quality of magnesium alloy.
热速处理后组织部分保留了高温过热时的特性,从而使镁合金的力学性能和铸件质量得到提高。
The microstructure of AZ91 alloy keeps some characteristics of the high temperature melt after thermal rate treatment, which improves the mechanical properties and casting quality of magnesium alloy.
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