第一类热处理缺陷指淬火裂纹。
First kind refers to hardening heat treatment defects cracks, or quenching cracks.
通常工件的热处理缺陷可分为三大类。
The defects of parts usually can be divided into three categories in the heat treatment.
结果表明,活塞杆在磁粉探伤中显现的螺旋形磁粉堆积线是由热处理缺陷一屈氏体软带造成的。
The result proves that the accumulate line is caused by heat treatment defect, soft troostite tape.
制动轮是门座式起重机制动装置的关键零件,制动轮在生产制造和使用过程中的早期失效及热处理缺陷是影响生产成本及效率的重要因素。
The brake wheel is a key part of portal frame crane, and its earlier failure and heat treatment defect during manufacture and use is the key factor, which affects the cost and efficiency.
中空轴轴颈裂纹是水泥磨的严重故障。中空轴轴颈裂纹产生的原因主要有:铸造缺陷,应力集中,焊接和热处理质量问题等。
Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.
介绍了球墨铸铁曲轴的铸造方法、熔炼工艺和热处理工艺,同时描述了预防一般缺陷的措施。
Foundry method, melting process, heat treatment process for nodular iron crankshaft was introduced and the measures to prevent common defects were described.
快速热处理温度、时间、降温速度、退火气氛、掺杂原子等都对硅片中点缺陷的形成及分布产生影响,进而影响氧沉淀的形成。
The RTP temperature, the RTP time, the cooling rate, the ambient and the dopant atoms influenced the density and distribution of point defects in wafers, and then affected oxygen precipitates.
介绍了锻压机垫板的热处理工艺改进措施,从而防止了其开裂缺陷,提高了使用寿命。
It has been introduced that cracking defect of female die cushion of forging machine has been analysed and its preventive heat treatment technology.
热处理起泡是挤压铸件常见的缺陷之一,它与挤压方式、工艺、模具等有关。
Heat treatment blister is one of common defects of squeeze casting parts, which has some relations with molding method, process and mould.
分析了挂舵臂铸钢件常见的组织缺陷及产生原因,提出了铸钢件的冶炼及热处理工艺。
The common structural defect of large-scale rudder horn casting steel and its cause of flaw were analyzed, the smelting and heat treatment technology of casting steel was pointed out as well.
第一类外折缺陷并不是在热处理过程中产生的,而是产生在穿孔及轧制过程中;
The first kind of defects were outside fold, they generated in perforation and rolling not in heat treatment;
主要探讨了汽车后桥被动锥齿轮在渗碳热处理过程中出现的变形问题,并分析了缺陷产生的原因,提出相应的解决对策。
The gear distortion of automobile rear bridge during carburizing heat treatment was discussed, the fault reason was analysed and relevant measure was put forward.
分析了锻件生产过程中,在锻造、热处理以及炼钢中经常产生缺陷的原因,并提出了预防措施。
Based on analysis on the reasons for the defects in large sized forgings during steel making, heat treatment and, the preventive measures were formulated.
另外,热处理工艺不当以及焊接缺陷是造成叶轮失效的促进因素。
In addition, improper heat treatment process and welding defects promotes the destruction trend in the gas turbine wheel.
结果表明,马氏体时效钢铸件热处理后强度较高,受制于其内部铸造缺陷。
It was shown that the maraging steel cast exhibited a higher strength, which was controlled by the casting defects in it.
主要原因与热处理回火温度、表面加工缺陷以及材料化学成分有关。
The cause of fracture is related with tempering temperature, machining defects on the surface and chemical composition of the fracture bolt.
从锻件的材质、锻造工艺参数、锻模温度、热处理工艺参数四个方面,阐述了铝合金模锻件粗晶缺陷的产生原因及消除措施。
The article discusses causes and eliminated measures of aluminium alloy die forgings crassitude crystal from four sides of component, technical parameter, temper of die and heat treatment.
研究了掺杂剂原子种类及快速热处理技术对大直径直拉硅单晶中空洞型微缺陷密度的影响。
After rapid thermal annealing(RTA) in Ar atmosphera at high temperature, the flow pattern defects(FPDs) density decreased more sharply in Sb-doped wafers than that in lightly B-doped wafers.
试验表明,采取焊前预热,焊后热处理的TIG焊工艺进行焊接可以减少焊接缺陷的产生。
The experiment results show that the welding defects can be decreased by using preheat and post-weld heat treatment.
结果表明,压铸模具的失效原因主要是:电加工导致的缺陷,材料热处理工艺不当,以及金属液的冲击等。
The results reveal that the crack failure of the mould is mainly attributed to the electrical discharge machining, the improper heat treatment process and the impact of liquid metal.
本文应用X射线透射截面形貌技术研究了氢气区熔硅单晶中氢致缺陷与热处理温度的关系。
The relationship between the annealing temperatures and the hydrogen-induced defects in floating zone silicon grown in hydrogen atmosphere has been investigated by X-ray section topography.
但是以往的循环热处理工艺具有难控制,易出现裂纹,不能广泛应用于工业生产的缺陷。
But its difficulty in controlling and tendency to form cracks has impeded its wide industrial application.
提供了一种方法,其中,对有缺陷的半导体晶体材料执行非晶化步骤,随之以热处理步骤。
A method in which a defective semiconductor crystal material is subjected to an amorphization step followed by a thermal treatment step is provided.
然后执行热处理步骤,以便使有缺陷的半导体晶体材料的非晶化区域再结晶。
A thermal treatment step is next performed so as to recrystallize the amorphized region of the defective semiconductor crystal material.
然后执行热处理步骤,以便使有缺陷的半导体晶体材料的非晶化区域再结晶。
A thermal treatment step is next performed so as to recrystallize the amorphized region of the defective semiconductor crystal material.
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