潮模砂日益增长的热负荷，更快的循环时间以及对造型材料质量要求的提高，对型砂制备提出了更高的要求。
The growing thermal load of green sand, the quicker recirculation times and the increased requirements on the quality of molding material make new demands on the molding sand preparation.
机器模具铸造工和核心制造者设立，调整和经营各种制模机和制芯机，制造砂，陶瓷模具和核心。
Machine mouldmakers and coremakers set up, adjust and operate various mouldmaking and coremaking machines to make sand and ceramics moulds and cores.
消失模铸造干砂充填紧实过程中，干砂对模型壁的动态压力可间接反映此处干砂的紧实程度。
The dynamic pressure on pattern wall can reflect indirectly the compaction degree of sand during the course of filling and compaction of sand on EPC.
干砂负压消失模铸造技术(简称LFC)中模样是消失模铸造成败的关键，而泡沫珠粒的充填是获得优质泡沫模样的关键工序之一。
In lost foam casting (LFC), the foam pattern is the key qualification, and the filling process is one of the crucial processes to ensure the high quality of the foam pattern.
铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。
The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.
高桥开始制造望远镜是在1967年，那是他们从事商业活动的第35个年头。至今，他们依然在砂模铸造领域有业务。
Takahashi began manufacturing telescopes in 1967 their 35th year of business. They began and remain in the sand casting business today.
针对干砂消失模铸造用涂料具有高透气性、高强度的特点，研制了一种涂料透气性、强度专用测量装置。
According to the characteristics, which coatings used in EPC are of high permeability and strength, a special device used to measure the strength and permeability is worked out.
采用高速摄影法和电极触点法，对干砂消失模铸造金属液的充填形态进行了初步研究。
The pilot study was done on the filling shape of liquid metal in lost foam process with dry sand by using rapid photography method and contact time method.
手动模具制造商使用样模，成型盒，砂及手工具，遵从板凳，地板或坑成型方法，制造和修理砂模；
Manual mouldmakers make and repair sand moulds using patterns, moulding boxes, sand and hand tools following bench, floor or pit moulding methods;
钢筋骨架网衬砌模注砼及初期锚喷砼支护，采用水泥裹砂半湿式喷砼法；
The re bar net preliminary lining mould shotcrete and preliminary and anchor shotcrete are used for support by the use of the semi wet spraying method with sand entrapped in cement.
砂模铸造使用相对便宜的木质模型生产出很多形状复杂的模型。
Sand casting is capable of making fairly complex shapes using relatively inexpensive wood patterns.
消失模铸造工艺影响干砂紧实的主要因素是振动加速度和负压度。
The main factors influencing sand compaction on EPC are vibration acceleration and negative pressure.
砂模铸造的过程主要用于较大部件和少量部件的生产。
The sand casting process is used typically for larger parts and for small quantities of parts.
介绍了铁模覆砂铸造大型空心球铁曲轴的工艺。
This paper described the foundry technology of horizontal pouring and solidifying to produce large hollow ductile iron crankshaft cast in sand coated iron mould.
砂箱铸造车间内保持砂模用的框架。
详细分析了不锈钢熔模铸件夹砂（起皮）产生的原因，并提出了防止不锈钢铸件夹砂（起皮）的一系列措施。
The text detaily analyzes the cause of scab of stainless steel steel melt wax casting and proposes some measures to avoid it.
详细分析了不锈钢熔模铸件夹砂（起皮）产生的原因，并提出了防止不锈钢铸件夹砂（起皮）的一系列措施。
The text detaily analyzes the cause of scab of stainless steel steel melt wax casting and proposes some measures to avoid it.
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