1) shell core
薄壳砂芯
2) peeling back of sand cores
砂芯脱壳
3) core sand
芯砂
1.
The paper analyses the forming causes of blank crack and points out that higher core sand strength, bottom-casting single-layer runner and solid structure of sand core are main factors of affecting the blank casting quality.
分析了大斗毛坯产生裂纹的原因,并指出芯砂强度高、底注单层浇道、砂芯为实心结构等是影响大斗毛坯铸造质量的主要因素。
2.
And effects of various factors on properties of the binder and its bonded core sand were also discussed.
使用创新的干法复合反应工艺合成了改性淀粉粘接剂,讨论了各因素对改性淀粉及其粘接芯砂性能的影响。
3.
After experiment on the technical properties of core sand made of the changedproperty starches as main binder,each technical properties of changedproperty starch binder is analysed with the method of mathematical analysis of grey connection.
以改性淀粉为主粘结剂配制芯砂并进行芯砂工艺性能试验 ,采用灰色关联的数学分析方法 ,对改性淀粉芯砂的工艺性能进行分析。
4) sand core
砂芯
1.
The paper analyses the forming causes of blank crack and points out that higher core sand strength, bottom-casting single-layer runner and solid structure of sand core are main factors of affecting the blank casting quality.
分析了大斗毛坯产生裂纹的原因,并指出芯砂强度高、底注单层浇道、砂芯为实心结构等是影响大斗毛坯铸造质量的主要因素。
2.
Sand core has smooth surface, clear outline, and accurate size.
生产浇注试验表明 :砂芯表面光洁 ,轮廓清晰 ,尺寸精确 ,铸件缺陷少 ,无毒或低毒 ,和一般冷硬树脂砂比较 ,成本降低 3 0 %。
3.
In this paper,the temperature field of Sodium silicate sand cores of the machine tool′s cast iron is measured.
本文对机床铸铁件水玻璃砂芯在浇注、冷却过程中的温度场进行了测定。
5) Core
[英][kɔ:(r)] [美][kɔr]
砂芯
1.
The production of ductile iron pipe fittings by using united assembly core has been briefly introduced in this paper.
介绍了采用组合砂芯的工艺方法生产球铁管件 ,以及制造此类砂芯的简易射芯机。
6) die casting
砂芯
1.
The developed sand cores collapsibility is good,which is tested by the die casting of ZL102 aluminium alloy, and it can meet the requirments of die casting technology and its quality.
研制的压铸用溃散性砂芯，用于压铸ＺＬ１０２铝合金，压铸件的孔型成形完好，无粘砂缺陷，溃散性好，可满足压铸工艺及铸件质量要
2.
The die casting experiment shown that the sand cores developed for die casting are good in collapsibility and may meed die casting technology and quality of die casting's requre.
研制的压铸用砂芯，经压铸实验，溃散性好，可满足压铸工艺及铸件质量要求。
补充资料：芯砂
铸造生产中用于制造型芯的材料，一般由铸造砂、型砂粘结剂和辅加物等造型材料按一定的比例混合而成。型芯在铸型中大部分被高温的液态金属所包围，而支撑定位部分的尺寸一般较小，因此芯砂除应具有一般型砂的性能外，还要求有较高的强度、透气性、退让性和溃散性。芯砂按所用粘结剂不同分为粘土芯砂、水玻璃芯砂、油芯砂、合脂芯砂、树脂芯砂等。形状简单的型芯，一般可用粘土芯砂制成；形状复杂、断面较细较薄、要求干强度高、溃散性好的型芯，则使用油芯砂、合脂芯砂或树脂芯砂。植物油砂芯可获得十分光洁的铸件，但所用的桐油、亚麻仁油、改性米糠油等,货源稀缺,价格昂贵。因此中国自1963年开始广泛采用制皂工业制取合成脂肪酸后的残渣(简称为合脂)作粘结剂。这种芯砂具有近似油芯砂的干强度、退让性和溃散性。使用油芯砂和合脂芯砂制造砂芯时，有硬化前芯子强度相当低、易变形、硬化速度慢、生产周期长、需要烘干等问题，影响铸件的尺寸精度和生产效率。用树脂作为粘结剂的芯砂，采用热芯盒法和冷芯盒法制芯，因不存在上述缺点很快就在汽车、拖拉机等大批量生产的工厂中获得广泛应用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条