不幸的是尽管中国制造的平头挺杆物美价廉,但是其冶金技术遭到质疑,加工、热处理、表面硬化质量也遭质疑。
Unfortunately, though flat tappets from China are cheap, their metallurgy is suspect-and the same goes for the quality of their machining, heat treatment and surface-hardening.
它的生产过程是将不同元素的前驱粒子混在一起制成“纳米微粒墨”,将其连续不断地涂在金属薄片表面,然后通过加热处理使粒子适当地组合。
It mixes small precursor particles of the different materials to create a "nanoparticle ink" that is continuously coated onto metal foil and then heated so that the particles assemble correctly.
磨削强化技术是利用磨削加工过程中产生的大量磨削热对工件材料进行表面热处理的新工艺技术。
The grinding strengthen technology is a new process engineering of surface heat-treatment, which uses a mass of grind heat produced in grinding process to handle workpiece materials.
裂痕:因为热处理工艺不恰当而产生在产品表面的损伤。
CRACK: Surface defect on product caused by improper heat treating process during the process of producing steel.
钢的热处理工序包括硬化、回火、退火和表面硬化。
The procedures of heat treatment of steel include hardening tempering annealing and case hardening.
经冷轧后实施热处理、酸洗或其它相当处理,再以冷轧加工使表面为适当之光亮程度者。
Those finish, after cold rolling, by treatment, by heat packing or other equivalent treatment and lastly by cold rolling to give an appropriate luster.
磨削淬火技术是利用磨削热对工件表面进行热处理,使工件表层发生马氏体相变,达到与表面强化处理一样的性能。
The heat flux generated in grinding is utilized to induce martensitic phase transformation in the surface layers of components, such as that achieved by other surface strengthening processes.
同时表面硬度高,经热处理后,其镀层表面形成非晶态和晶态的混合物时,硬度可达1200HV。
Meanwhile, high surface hardness after heat treatment, the coating surface formed into the amorphous and crystalline mixture, the hardness is up to 1200hv.
图纸内容还应包括材料部件编号,间隙公差,表面机械加工符号,热处理信息,表面保护,材料重量,以及其他的必要内容。
Drawings will also include the material part Numbers, tolerances clearances, surface machining symbols, heat treatment information, surface protection, material weight and other necessary information.
采用石墨涂层,对高速钢刀片进行了激光热处理,显著地提高了刀片表面的能量吸收率和硬度。
The energy absorptivity and hardness of knife surface are obviously increased using graphite coating during laser thermal treatment for high speed steel knife.
对活塞环槽表面的激光热处理工艺与机理进行了试验研究。
The laser heat treatment process and mechanism on the surface of piston ring groove were studied.
针对本厂生产的柴油机中合金铸铁和低合金钢表面热处理的大型零部件进行对比测试,扩大里氏硬度计在实践中的应用。
In this paper, large alloy iron parts and low-alloy steel parts after surface heat treatment, used in the diesel engine, were tested and compared. By Leeb hardness sclerometer.
对加工工艺有丰富的知识,如机加工,锻造,注塑,热处理和表面处理等工艺。
Good knowledge about manufacturing process, such as machining, forging, injection molding, heat treatment and surface treatment, etc.
本文主要介绍中碳合金结构钢经整体塑性变形、热处理后再进行表面冷变形工艺是提高材料疲劳强度的有效途径。
This paper mainly presents that constructional mid-carbon alloy steel, after bulk moulding deformation, heat treatment and cold surface deformation can raise fatigue strength of materials effectively.
热处理及表面处理、焊接、喷涂方面有完善的配套供应链,可满足客户比较全面需求。
Heat treatment and surface treatment, welding, spraying have a full package of supply chain to meet customer demand for more comprehensive.
对碳钢表面金属陶瓷涂层的配方、涂敷工艺、热处理工艺等进行了研究。
The formulations, application process and heat treatment process, etc of metal ceramic coatings on carbon steel surface are researched.
目的探讨溶胶-凝胶沉积钛法中热处理过程对烤瓷用镍铬合金表面钛涂层的影响。
Objective To study the effect of heat treatment with sol-gel method on the surface of Ni-Cr alloy for PFM after ti coating.
论述了用于金属材料表面热处理的等离子弧发生器的工作原理、结构特点和参数设计。试验证明这种发生器对材料的表面局部硬化非常有效。
The working principle, structure and parameters design of plasma arc generator for heat treatment are described. Experiment has shown that it has good effect on partial surface hardening.
精密铸造厂家,主要产品为阀、泵、叶轮、食品机械配件等,提供从产品开发、模具制造、铸件、机加工、热处理和表面处理的一站式服务,年产能1000吨。
We are a precision casting manufacturer and provide one-stop service from tooling, casting, heat treatment and surface treatment. The main annual capacity is about 1000 tons.
制备表面抗菌不锈钢的方法有化学热处理、磁控溅射、离子注入、溶胶-凝胶和化学沉积。
There are various methods to obtain antibacterial surface on stainless steels, such as chemical heat treatment, magnetron sputtering, ion implantation, Sol-Gel, and chemical deposition.
研究了渗碳热处理过程中淬火冷却和回火状况以及磨削加工对渗碳淬火汽车齿轮表面残余应力的影响。
The influences of carburizing heat treatment process and grinding process on surface residual stress of automobile gears are studied.
采用扫描电镜结合能谱的测试方法,对热处理前后含铬绝缘涂层中正常涂层和斑点的表面形貌及成分进行了分析。
The surface topography and composition of normal coating and spot were investigated by scanning electron microscope and energy dispersion spectrum.
低温下进行水热处理,羟基磷灰石晶体在氧化膜的表面沉积。
Hydroxyapatite crystals were precipitated on film surfaces at low temperature hydrothermal treatment.
特殊的材料包括球墨铸铁和钢煅品,大部分机轴经过热处理,表面硬化、渗氮和感应淬火。
Typical materials include ductile iron castings or steel forgings. Most crankshafts require some form of heat treating including case hardening, nitriding and induction harden.
用一台输出功率约2千瓦的横向流动CO_2激光器对碳钢、铸铁进行表面热处理。
We have used a transversely-excited flowing CO2 laser with the output power of about 2kw for heat-treatment of the surface of carbon-steel.
表面热处理:是增加强紧固件的硬度或任何表面积上的机械性能。
Surface heat treatment: surface heat treatment is a process that improves the hard-ness or other mechanical property of the fastener in any surface area.
研究了2a12铝合金表面镍磷合金镀层的性能及热处理温度对镀层硬度、耐磨性、磨损速率等的影响。
The article research for the properties of Ni-P coat on 2a12 aluminum alloy and the effects of heat treatment temperature on hardness, wear resistance and wear rate etc. of coat.
实验结果表明,热处理前去掉冷拉棒表面的碎晶层可以防止它在热处理过程中产生裂纹。
Experiment results show that removing the surface broken crystal layer of the cold drawn rod can prevent heat treatment induced cracks.
研磨工件需要有精确尺寸及热处理膜、去黑膜、去黑头、倒角、表面精铸造工件磨光之用。
Especial finished parts need precision and have size heat treat film available for film removal, debarring of casting parts.
研究了热处理对气凝胶密度、比表面、微观结构和疏水性等的影响。
And we study the effects of heat-treated process on the aerogels' density, specific area, microstructure, hydrophobic property and so on.
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