压铸件常见缺陷分析一、铸件表面有花纹，并有金属流痕迹产生原因：1、通往

压铸件常见缺陷分析
一、铸件表面有花纹，并有金属流痕迹产生原因：1、通往铸件进口处流道太浅。2、压射比压太大，致使金属流速过高，引起金属液的飞溅。调整方法：1、加深浇口流道。2、减少压射比压。

二、铸件表面有细小的凸瘤产生原因：1、表面粗糙。2、型腔内表面有划痕或凹坑、裂纹产生。调整方法：1、抛光型腔。2、更换型腔或修补。
三、铸件表面有推杆印痕，表面不光洁，粗糙产生原因：1、推件杆（顶杆）太长；2、型腔表面粗糙，或有杂物。调整方法：1、调整推件杆长度。2、抛光型腔，清除杂物及油污。
四、铸件表面有裂纹或局部变形
产生原因：1、顶料杆分布不均或数量不够，受力不均：2、推料杆固定板在工作时偏斜，致使一面受力大，一面受力小，使产品变形及产生裂纹。3、铸件壁太薄，收缩后变形。调整方法：1、增加顶料杆数量，调整其分布位置，使铸件顶出受力均衡。2、调整及重新安装推杆固定板。
五、压铸件表面有气孔
产生原因：1、润滑剂太多。2、排气孔被堵死，气孔排不出来。调整方法：1、合理使用润滑剂。2、增设及修复排气孔，使其排气通畅。
六、铸件表面有缩孔
产生原因：压铸件工艺性不合理，壁厚薄变化太大。金属液温度太高。调整方法：1、在壁厚的地方，增加工艺孔，使之薄厚均匀。2、降低金属液温度。
七、铸件外轮廓不清晰，成不了形，局部欠料
产生原因：1、压铸机压力不够，压射比压太低。2、进料口厚度太大；3、浇口位置不正确，使金属发生正面冲击。调整方法：1、更换压铸比压大的压铸机；2、减小进料口流道厚度；3、改变浇口位置，防止对铸件正面冲击。
八、铸件部分未成形，型腔充不满
产生原因：1、压铸模温度太低；2、金属液温度低；3、压机压力太小，4、金属液不足，压射速度太高；5、空气排不出来。调整方法：1、提高压铸模，金属液温度；2、更换大压力压铸机。3、加足够的金属液，减小压射速度，加大进料口厚度。
九、压铸件锐角处充填不满
产生原因：1、内浇口进口太大；2、压铸机压力过小；3、锐角处通气不好，有空气排不出来。调整方法：1、减小内浇口。2、改换压力大的压铸机。3、改善排气系统十、铸件结构疏松，强度不高
产生原因：1、压铸机压力不够；2、内浇口太小；3、排气孔堵塞。调整方法：1、改换压力机。2、加大内浇口。3、检查排气孔，给以修整通气。
十一、铸件内有气孔产生
产生原因：1、金属液流动方向不正确，压铸件型腔发生正面冲击，产生涡流，将空气包围，产生气泡。2、内浇口太小，金属液流速过大，在空气未排出前过早地堵住了排气孔，使气体留在铸件内。3、动模型腔太深，通风排气困难。4、排气系统设计不合理，排气困难。调整方法：1、修正分流锥太小及形状防止造成与金属流对型腔的正面冲击。2、适当加大内浇口。3、改进模具设计。4、合理设计排气孔，增加空气穴。
十二、铸件内含杂质
产生原因：1、金属液不清洁，有杂质。2、合金成分不纯。3、模具型腔不干净。调整方法：1、浇注进，把杂质及渣清掉。2、更换合金。3、清理模具型腔，使之干净。
十三、压铸过程中，金属液溅出
产生原因：1、动、定模间密合不严密，间隙较大。2、锁模力有够。3、压机动、定模板不平行。调整方法：1、重新安装模具。2、加大锁模力。3、调整压铸机，使动、定模相互平行。

結果 (英文) 1:

Analysis of casting defectsFirst, surface patterns, signs of metal flow and cause: 1, entrance channel was too shallow to castings. 2, injection pressure is too big, Metal flow rate is too high, causing molten metal splashes. Adjustment method: 1, deepening gate road. 2, reduce injection pressure. Second, casting a small bump on the surface causes: 1, surface roughness. 2, the cavity surface scratches and crack or dent. Adjustment method: 1, polished impression. 2, replacing the cavities or repairing. Third, putting marks on the surface of casting, surface is not smooth and rough causes: 1 push rod (push rod) is too long; 2, cavity surface roughness, or debris. Adjustment method: 1, adjust the push-rod length. 2, polishing mould cavity, remove debris and grease. Four, the casting surface there are cracks or local deformation Cause: number 1, the ejector rod is unevenly distributed or not, force: 2, pushing Rod fixing plate to oblique at work, resulting in a force, a force small, product deformation and cracking. 3, casting wall is too thin, the shrinkage deformation. Adjustment method: 1, increasing the number of ejector rod, adjusting its position, casting out the force equilibrium. 2, adjust and to reinstall push rod fixing plate. Five, the casting surface air holes Cause: 1, lubricant are too much. 2, the vent is blocked, and stomatal rows out. Adjustment method: 1 rational use lubricant. 2, new or repair exhaust vent, its exhaust is unobstructed. Six, the casting surface shrinkage Cause: the casting process is unreasonable, variations of wall thickness is too large. Liquid metal temperature is too high. Adjustment method: 1, where the wall thickness, increase the technological holes to make it uniform thickness. 2, reduce the temperature of molten metal. Seven, the casting contour is not clear, which is no local material shortage Cause: 1, enough pressure die casting machine, injection pressure is too low. 2, the thickness of the inlet is too big; 3, gate position is not correct, cause positive impact in the metal. Adjustment method: 1, replace die casting pressure die casting machine; 2, reducing the thickness of the inlet flow; 3, changing the gate locations, prevent the positive impact on the cast. Eight-part, casting shape cavity filled dissatisfaction Cause: 1, die temperature too low; 2, low temperature of molten metal; 3, compressor pressure is too small, 4, insufficient liquid metal, injection speed too high; 5, the air does not come out. Adjustment method: 1, increasing pressure, and liquid metal temperature; 2, replace pressure die casting machine. 3, add enough of the liquid metal, reduce the injection speed, increase the thickness of the inlet. Nine, casting sharp filling complaints Cause: 1, Ingate imports too big; 2, pressure die casting machine is too small; 3, acute angle bad ventilation, the air does not come out. Adjustment method: 1, reducing the inner gate. 2, changing the pressure die-casting machines. 3, improved exhaust system ten, casting loose structure, high strength Cause: 1, pressure die casting machine is insufficient; 2, gate is too small; 3, vent blockage. Adjustment method: 1 switch press. 2, increase the inner gate. 3, check the exhaust vent, repair of ventilation. XI produced by air holes in castings Cause: 1, liquid metal flow direction is not correct, die casting cavity positive impact, eddy currents will be surrounded by air, bubbles. 2, gate is too small, Metal flow is too large, prematurely before the discharged air is not blocked vent, so that gas remain within the cast. 3, the cavity is too deep, ventilation and exhaust problems. 4, the unreasonable design of the exhaust system and exhaust problems. Adjustment method: 1, fixed shunting cone is too small and the shape to prevent positive impact with the metal flow in the cavity. 2, increasing the gate. 3, improved design. 4, rational design vent, air hole. 12, cast iron containing impurities Cause: 1, metal is kept clean of impurities. 2, alloy composition is not pure. 3 mold cavity clean. Adjustment method: 1, casting, and clear out impurities and residues. 2, replace the alloy. 3, cleaning the mold cavity to make it clean. 13, die casting process, molten metal splashes Cause: 1, dynamic and modular seal not tight, large gap between them. 2, there are enough clamping force. 3, mobile, fixed templates, not parallel. Adjustment method: 1, reinstall the mold. 2, increase the clamping force. 3, adjust the die casting machine, dynamic and fixed parallel to each other.

結果 (英文) 2:

The common flaw analysis casting
a casting surface with patterns, and there are traces of the metal flow causes: 1, leading to the casting inlet flow channel is too shallow. 2, injection pressure is too large, resulting in metal flow rate is too high, causing the splashing of liquid metal. Adjustment method: 1, deepen the gate runner. 2, to reduce injection pressure. Second, there is a small convex casting surface tumor causes: 1, surface roughness. 2, cavity surface scratches or dents, cracks. Adjustment method: 1. polishing the cavity. 2, the replacement or repair cavity. Third, the casting surface putt prints, the surface is not smooth, rough causes: 1. Pushing rod (ram) is too long; 2, cavity surface roughness, or debris. Adjustment method: 1, adjust the length of the push rod member. 2, polishing cavity, remove debris and oil. Fourth, there is the casting surface cracks or local deformation causes: 1, ejector rod or an insufficient number of uneven distribution, uneven force: 2, pusher rod fixed plate deflection at work, causing one side by the force, side by force is small, the product deformation and cracks. 3, thin wall castings, after shrinkage. Adjustment method: 1, increase the number of ejector rod, adjust the position of its distribution, the casting ejection force balance. 2, adjust and re-install pushrod retainer. Fifth, the casting surface pores causes: 1, lubricants too much. 2, the vent is blocked, the pores did not break out. Adjustment method: 1, the rational use of lubricants. 2, creation and restoration vent to exhaust unobstructed. Sixth, there is the casting surface shrinkage causes: casting process of unreasonable, thin wall thickness changed so much. Liquid metal temperature is too high. Adjustment method: 1, in the place where the wall thickness and increase technological holes, so that Bo Hou uniform. 2, reduce the temperature of the molten metal. Seven, outside casting contour is not clear, it can not form a local underfeeding causes: 1, enough pressure die casting machine, injection low pressure ratio. 2, the inlet thickness is too large; 3, gate position is not correct, the metal event of a frontal impact. Adjustment method: 1, replace larger than the pressure die casting die casting machine; 2, reducing the inlet flow channel thickness; 3, change the location of the gate, to prevent casting a positive impact. Eight, casting part unformed, cavity filling dissatisfaction causes: 1, die casting mold temperature is too low; 2, molten metal temperature is low; 3, the press pressure is too small, 4, insufficient liquid metal, injection speed is too high; 5 Air did not break out. Adjustment method: 1, to improve die casting, molten metal temperature; 2, replace large pressure die casting machine. 3. Add enough liquid metal to reduce injection speed, increase inlet thickness. Nine, casting an acute angle at the filling dissatisfaction causes: 1, imports of the gate too; 2, pressure die casting machine is too small; 3, good ventilation at an acute angle with the air did not break out. Adjustment method: 1, reducing the gate. 2, the change in pressure die casting machine. 3, to improve exhaust system ten, casting loose structure, the intensity is not high Cause: 1, enough pressure die casting machine; 2, the gate is too small; 3, vent blockage. Adjustment method: 1, the change in the press. 2, increase the gate. 3, check the vents, give vent trim. XI, within pores produce castings causes: 1, molten metal flow direction is not correct, casting cavity event of a frontal impact, vortex, the air surrounded by bubbles. 2, the gate is too small, the metal flow rate is too large, the air is not discharged prematurely before blocking the vent, the gas remaining in the casting. 3, the movable mold cavity deep, ventilation difficulties. 4, exhaust system design is unreasonable, exhaust problems. Adjustment method: 1, amended to prevent diversion cone shape is too small and cause the metal flow positive impact on the cavity. 2, appropriate to increase the gate. 3, to improve the mold design. 4, reasonable design vent, increase air pockets. Twelve, castings containing impurities causes: 1, liquid metal dirty, there are impurities. 2, impure alloy composition. 3, the mold cavity is not clean. Adjustment method: 1, pouring forward, cleared away the impurities and residue. 2, the replacement alloy. 3, clean up the mold cavity, so that clean. Thirteen, die-casting process, molten metal splashes causes: 1, dynamic, adhesion between the fixed mold does not close, the gap is large. 2, there is enough clamping force. 3, the pressure maneuver, given template are not parallel. Adjustment method: 1, reinstall the mold. 2, increase the clamping force. 3, adjusting the die-casting machine, so moving parallel to each other fixed mold.

結果 (英文) 3:

The common defects of die casting die analysis of the surface of the casting, and the surface of the casting, and there are reasons for the metal flow. 1, the entrance to the casting is too shallow. 2, the pressure is too big, the metal flow is too high, causing the metal liquid splash. Adjustment method: 1, deepen the runner. 2, reduce the pressure to shoot ratio. Two

fine casting surface, bump causes: 1, surface roughness. 2. The surface of the cavity has scratches or pits and cracks. Adjustment method: 1, polishing cavity. 2, replace the cavity or repair.
three, a push rod casting surface marks, smooth surface, rough reasons: 1, a push rod (rod) is too long; 2,Type of cavity surface roughness, or debris. Adjustment method: 1, adjust the push rod length. 2, polished cavity, remove debris and oil.
four, the casting surface has the crack or the local deformation
production reason: 1, the top material pole distribution is uneven or the quantity is insufficient, the stress is not all: 2, the push rod fixed plate in the work, the side force is big, the side force is small, causes the product the distortion and the crack. 3, casting wall is too thin, after the shrinkage deformation. Adjustment method: 1, increase the number of the top material, adjust its distribution position, so that the casting of the top of the force balance. 2, adjust and re install the push rod fixed plate.
five, the surface of the die casting has the reason of the air hole

:1, lubricant is too much. 2, the exhaust hole is blocked, vent holes out. Adjustment method: 1, reasonable use of lubricant. 2, the addition and repair of the exhaust hole, so that the exhaust gas.
six, casting surface shrinkage
cause: die casting process is not reasonable, the wall thickness change is too big. Metal liquid temperature is too high. Adjustment methods: 1, in the thickness of the place, increase technological hole, make uniform thickness. 2, reduce the temperature of metal liquid.
7, casting the outer contour is not clear, can't shape, local owe material
reason: 1, die casting machine is not enough pressure, injection pressure is too low. 2, the feed inlet thickness is too large; 3, gate position is not correct,Make metal positive impact. Adjustment method: 1, the replacement of die casting die casting machine; 2, reduce the inlet flow channel thickness; 3, change the gate position, to prevent the impact of the casting.
eight, casting part is not formed, the type cavity filling dissatisfaction
produce reason: 1, the die casting mold temperature is too low; 2, the metal liquid temperature is low; 3, press the pressure is too small, 4, the metal liquid is insufficient, the pressure is too high; 5, air exhaust. Adjustment method: 1, improve the die casting mold, metal liquid temperature; 2, the replacement of large pressure die casting machine. 3, add enough metal liquid, reduce the pressure of the injection speed, increase the feed mouth thickness.
nine, casting an angle filling
Reasons: 1, ingate import is too large; 2, die-casting machine pressure too small; 3, acute at the ventilation is not good, the air row not to come out. Adjustment method: 1, reduce the inner gate. 2, change the pressure of the die casting machine. 3, improve the exhaust system ten, casting structure loose, strength is not high, the reason: 1, die casting machine pressure is not enough; 2, the gate is too small; 3, exhaust hole plug. Adjustment method: 1, change the press. 2, increase the inner gate. 3, check the exhaust hole, give the repair ventilation.
eleven, there are some reasons for the formation of the pores in the casting: 1, the flow direction of the metal liquid is not correct, the cavity of the die casting is a positive impact, and the vortex,Surround the air with bubbles. 2, the inner gate is too small, the metal liquid flow rate is too large, in the air before the air is not discharged prematurely to block the exhaust hole, so that gas in the casting. 3, the dynamic model of the cavity is too deep, ventilation and exhaust difficulties. 4, exhaust system design is unreasonable, exhaust difficulties. Adjustment method: 1, correction of the diversion cone is too small and shape to prevent the flow of the metal flow to the positive impact of the cavity. 2, appropriate to increase the inner gate. 3, improve the mold design. 4, rational design of exhaust hole, increase air hole.
twelve, the casting containing impurities
produce reason: 1, the metal liquid is not clean, there are impurities. 2, impure alloy. 3, mold cavity is not clean.Adjustment method: 1, pouring into, the impurities and slag clear. 2, replacement of alloy. 3, clean the mold cavity, make it clean.
thirteen, die casting process, the molten metal splash
cause: 1, dynamic, modular seal is not tight, large gap. 2, locking force has enough. 3, the pressure of the motor, the template is not parallel. Adjustment method: 1, re install the mold. 2, increasing the clamping force. 3, adjust the die casting machine, so that the dynamic and constant modulus.