铝合金压铸常见问题与分析中英文对照版.doc

常见压铸模具生产问题及分析 The common production problem and analysis of die-casting moulds 压铸过程中金属液往外溅(跑铝)产生原因 The cause reason of molten metal splash when die casting. 1. 定模间合模不严密，间隙较大 Cover halves close imprecisely, and have big gap. 2. 锁模力不够 The mould clamming force is not enough. 3. 压铸机动，定模安装板不平行 The die casting machine is flexible ,and the mounting plate of cover half（fixed die） is not parallel.4. 支板跨度大，压射力致使套板变形，产生喷料。Support span（跨度） is large, and the injection pressure（force） bring about the cleading（保热套（汽锅的）；护罩；护壁板（隧道的））deformation , engendering（使产生；）产生molten metal spouting（喷射） . 调整方法 method of adjustment1.重新安装模具 reinstall the mould2.加大锁模力 increase the mould clamming force3.调整压铸机，使动、定模安装板相互保持平行 adjust the die-casting machine, ensure the mounting plate of fixed die（cover half） and moving die maintain mutual（共同的；相互的，彼此的） parallel。4.在动模上增加支板，增加套板的刚度。Add support plate on the movable mould ， increase the stiffiness（硬、刚度，rigidity，hardness） of the cleading 影响压射头（压力喷嘴）使用寿命的因素，主要因素有：The factors influencing the working life of the pressure nozzle（喷嘴；管口；鼻） jet ,main factors : 1.压射头（喷嘴）本身的材料、质量；The material and quality of the nozzle jet2.压射头与压射料筒之间的配合间隙；The fit clearance of the press charging（炉料；装料） barrel and jet nozzle 3.模具安装时与压射料筒的同心度；The concentricity of the mould and press charging barrel while installing4.冷却问题；cooling problem 5.选用优质压射头润滑油等。Select and use the superior nozzle jet lube(lubrication) etc.缺陷名：产品表面起皱 Defect name : surface wrinkling of the product （一）症状：产品表面形成的不规则褶皱，主要出现在壁较薄的前段部分，如所示。 (1)Symptom: The irregular folds（皱褶；折痕） emerging on the surface of product ,mainly appearing the thinner wall ,as show : 可以看到射出的细小铝颗粒和褶皱。Can see the small aluminium granule原因：由于吸入了脱模剂和压缩空气，被封闭在前段的气压较高，把产品表面顶起而导致这一现象的发生Reason: owing to indrawing the release agent or compressed air,air preasure being sealed up in the forepart is high then jack up the surface of the product and result in this phenomenon 解决方案：排气彻底，清除多余的脱模剂。调整高速高压区的位置以防止溶液降温 solution :exhaust thoro