耐磨型气门座，涉及气门座生产技术领域。
The utility model discloses a wear-resistant type valve seat, which relates to technical field of valve seat production.
向下的运动使气门向下移动离开气门座，气门被打开。
This downward movement forces the valve to move downward off its seat so that it opens.
当这发生时，气门弹簧紧紧地封闭气门口，叫做气门座。
As this occurs, valve springs pull the valve tightly closed against its opening, called the valve seat.
当这发生时，气门弹簧紧紧地关闭气门口，叫做气门座。
As this occurs, valve springs pull the valve tightly closed against its opening, called the valve seat.
叙述金属型离心铸造内燃机气门座的工艺方法和材料特点。
The permanent mould centrifugal casting process used for production of valve seat for internal combustion engine and the material of casting was described.
本文介绍了温度、燃料等对气门座磨损的影响及烧结材料气门座的特点。
In this paper, the influence of temperature and fuels etc to the wearing of the valve seats of sintered materials are introduced.
气门座要获得高的使用寿命就必须对其上、下倒角和工作面进行适当的修整。
Up chamfer, down chamfer and working face must be correctly dressed so that the valve seat can acquire a longer service life.
气门杆上的弹簧使气门保持在气门座上(关闭状态)。弹簧的下端抵在气缸盖上。
A spring on the valve stem tends to hold the valve on its seat (closed). The lower end of the spring rests against the cylinder head.
介绍了国内外气门座材料的使用与研制以及国外粉末冶金气门座的开发与应用情况。
Valve seat materials application and development in China and abroad are introduced, especially the research and application of the powder metallurgy valve seat abroad.
我公司现有产品包括气门导管、气门摇臂和预燃烧室、气门座、摇臂轴总成各大系列品种。
We currently offer five main product lines of valve guide, rocker arm, precombustion chamber, valve seat insert and rocker shaft.
为提高新型汽车发动机排气门座的耐磨性，第一汽车制造厂研制了铌铬钼钒铸铁排气门座。
To enhance the anti-wearing ability of exhaust valve seat for a new engine, a Nb-Cr-Mo-V cast iron value seat has been developed in the First Automobile Works.
气门维修包括镶配气门座，清洁或更换气门导管，保养凸轮轴和凸轮轴轴承，气门的正时调整。
Valve Service and Maintenance includes installing new seat inserts, cleaning or replacing valve guides, servicing the camshaft and camshaft bearings, and timing the valves.
阐述了一种动态测定内燃机进气门座处气体流通特性的方法。测量系在内燃机热车拖动情况下进行。
In this paper a method for dynamically measuring air flow characteristics at intake valve seat of internal combustion engine is presented.
结果表明，采用该工艺可获得高密度、高碳含量、具有马氏体、贝氏体和网状碳化物组织的粉末冶金气门座。
The results show that P/M valve seats using this technology has high density and high carbon content , and their microstructure are martensite , bainite and network carbide.
该设备采用快速夹头，气门双向摆动并同向差动，可以调整控制拍击力和拍击速度，可实现气门与气门座的铰削与研磨。
The muller uses clliper-collet, the gas-valve can flirt and differential, the rapping power and rapping velocity can be adjusted. It can chop and grind the gas-valve and valve seat.
经过对产品图纸、现生产手段进行综合分析，通过改进气门座尺寸要求，改进加工工艺方法，有效地解决了这一关键质量问题。
By analysis of drawings, machining measures, this key problem is solved effectively through improving the requirement of valve seat size and machining techniques.
近来随着引进国外柴油机新技术和新型柴油机，气门座材料趋于含碳量、铬量更高，甚至于采用高碳、高铬多元合金的镍基材料。
The materials have been widely used to make valve seats for most medium-and high-speed diesel engines at home and abroad.
介绍了气门弹簧座的冷挤压工艺和新型模具结构。
The working process for cold extruding of valve-spring base has been described, with a new die structure using ejector turning of itself.
发动机配件类：齿轮室、气门室罩盖、链轮室罩盖、预热器座、水泵泵盖、进气歧管、泵箱；
Engine fittings series:Gear chamber, Cavaera cover, Sprocket rooms cover, Preheaterbase, Water pump Cover, Intake manifold, Pump box.
发动机配件类：齿轮室、气门室罩盖、链轮室罩盖、预热器座、水泵泵盖、进气歧管、泵箱；
Engine fittings series:Gear chamber, Cavaera cover, Sprocket rooms cover, Preheaterbase, Water pump Cover, Intake manifold, Pump box.
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