Using self-feeding in solidification can make good surface quality, no shrinkage casting defects of castings; the technology product yield of the casting greatly increases. 利用凝固过程自补缩,可使铸件表面质量好,无缩孔、缩松等铸造缺陷,工艺出品率大大提高。
Computer solidification simulation software as a high technology is a powerful tool for helping foundry engineers in improving process design of casting, casting quality, and casting yield. 经计算机凝固模拟分析表明,新工艺能明显改善铸件的质量,实际生产中废品率显著降低。
The technology can improve riser design efficiency and accuracy, shorten the design period and ensure the casting quality, and increase casting process product yield. 该技术能提高冒口工艺设计效率与精度,缩短设计周期,保证产品质量,提高工艺出品率。
The sand core structure provided by the utility model can solve the difficult technique problems of core shooting and chocking in casting simply and effectively, and improve the yield of the castings. 本实用新型所提出的砂芯结构,可简单而非常有效的解决铸造生产中射芯呛火的技术难题,提高铸件的成品率。
The methods of reducing critical casting yield were analyzed theoretically. 并从理论上分析了降低临界成品率的几种途径。
Using short, thin, wide ingate and chill to prevent the shrinkage defects, casting yield was improved by 3%. 采用短、薄、宽的内浇道和冷铁工艺,消除球铁飞轮铸件的缩孔缺陷,铸造工艺出品率提高3%;
The side riser through which liquid metal flowed to the mold cavity was used, thus the dimension of the riser and its neck could be minimized and the casting yield could be increased. 采用侧冒口工艺,金属液流经冒口进入型腔,减小冒口及冒口颈尺寸,提高工艺出品率。
The application of the technology to aluminum alloy in squeezing casting can effectively improve the quality and precision of the castings as well as the utility rate of the materials and the production yield of the castings. 该项技术在铝合金挤压铸造中的应用能有效提高铸件的品质和质量精度,提高材料的利用率和铸件生产率。
The two-ring casting is higher and stable in yield; 两种造型工艺比较,以双环铸造工艺的成品率较高、稳定;
It is summarized that thin slab process has some obvious advantages over the conventional process based on the comparison of interior quality, casting microstructure, energy utilization and metal yield; 从铸坯的内部质量、铸态组织、能量利用率与成材率方面来看,薄板坯工艺有明显的优势;
The casting stress is generated during the process. When the residual stress exceeds the yield stress, the bull crack is easily generated. 在凝固过程中产生的铸造应力残余在铸件内,当残余应力值大于铸件的屈服极限时,就会产生裂纹。
With the rapid development of manufacturing, in the casting yield the castings with higher quality and precision are required. 随着制造业的飞速发展,在压铸领域对铸件的质量和精度要求也越来越高。
It can shorten the period of the new product investigation effectively, improve the products quality, acquire the higher casting yield, and also bring tremendous convenience to the technician. 使用该工具软件能够有效缩短新产品研发周期,提高产品质量,获得较高的工艺出品率,同时也给工艺设计人员带来极大的方便。
Using present equipments, including melting, casting and rolling, and optimizing casting technology, the yield of the rolled strip reached to more than 93%. 应用现有的熔铸及轧制生产设备,通过工艺的优化与调整,使得轴瓦带材的轧制成材率提高到93%以上。
Batch production shows there are no shrinkage cavity and porosity in casting, and no blowholes and sand inclusions on the top surface. The yield of the casting is 81%. 经批量生产验证,铸件内无缩孔、缩松缺陷,上表面无渣孔、气孔缺陷,工艺出品率81%。
It was pointed out that in tensile test with specimen of C-grade casting steel, the load-halt method or the judgment from the pointer swing of strain instrument could not give clearly the yield point except the graphical analysis method. 指出测定C级钢拉伸试样屈服点时,用载荷停顿法或指针法,屈服现象不明显,只有图解法可一次测出未知屈服指标。
The rate of burring for casting slab is attained to96%, the rate of yield of steel plate is increased by a factor of1%. 应用表明,铸坯毛刺去除率达到96%以上,减少了红送铸坯热轧钢板的结疤等质量问题,提高钢板成材率1%以上。
Compared with the metal model and directional casting samples, the yield strength and elongation has a certain extent improvement, the elongation is up to 12.8%. 其与金属型、定向凝固生产的样品相比,屈服强度、伸长率有一定的提高,伸长率可达12.8%。
The mould is one of the key devices of continuous casting machine, and the yield and quality of continuous casting machine mainly depend on the oscillation of mould. 结晶器是连铸机的关键设备之一,结晶器振动是影响连铸生产质量和产量的重要因素。
The data of test showed, the unsaturated polyester resin casting was of low tensile strength, low modulus, strain. Its stress-strain curve was nonlinear, and there was no yield point. 拉伸性能试验研究显示,不饱和聚酯树脂浇铸体的拉伸强度低、模量低,应变大,应力应变曲线呈非线性,且不存在屈服点。