The critical value of hot crack has been obtained according to the experiments on test casting, and it had been used on predicting the hot crack of bolster and side bearer.
在热裂试验的基础上，得到了铸件热裂纹倾向的临界值，进而实现了摇枕、侧架的热裂纹预测。
In this paper, the influence of various parameters on suspension shearing dry strength and permeability of EPC coating used on steel casting through right Angle test was studied.
通过正交试验，研究了各因素对真空实型铸造铸钢件涂料的透气性、干强度、剪切力、悬浮性的影响。
Good quality aluminium-alloy shell casting I produced by pouring test.
通过热态浇注试验，得到了质量良好的铝合金壳体铸件。
The technique level of technology parameter test for die casting machine has been promoted by using computer technique and numeral display.
由于采用计算机技术和数显技术，提高了压铸工艺参数测试的技术水平。
The test analyse is conducted to green casting adhesive and green heat treatment and selections of dry cutting tools.
对绿色铸造粘结剂、绿色热处理工艺、干切削刀具选用进行试验分析；
A comparative test between green sand mold casting method and resin sand-coated iron mold casting method was conducted.
介绍了球铁刹车盘的不同铸造工艺，对粘土砂湿型铸造工艺和覆砂铁型铸造工艺进行了试验对比。
In this paper, an apparatus for distortion intensive measurement of casting is designed to test the distortion resistance of several kind of casting materials.
设计了铸件变形强化测试装置，测定了几种不同材质的铸件抗变形能力。
By use of orthogonal test design, how the injection speed, pouring temperature and mold temperature effects the casting shrinkage porosity forming is studied.
然后，本文通过正交试验的方法研究了压射速度、浇注温度和模具预热温度对铸件缩松缩孔缺陷的影响。
To test solidification characteristics of various casting alloy accurately is very significant for optimizing casting technique and getting castings with sound property and appropriate dimensions.
精确测定不同铸造合金的凝固特性对于优化铸造工艺、获得满足性能和尺寸要求的铸件具有十分重要的意义。
By observing and analyzing the casting test piece, we have found a metallurgical integrating layer that is made up of chromizing cast-iron alloy layer.
我们还对铸渗质量较好的铸渗试件进行了观察和分析，发现铸铁渗铬合金层与母材结合良好，呈冶金结合。
The links among the pressure, the casting speed and the gap in the casting passage have been analyzed with the hydraulic modelling test.
结合水模型试验分析了浇铸通道内压力、拉坯速度和间隙三者之间的关系。
Trough technological test, the reason of low hardness was checked from two aspects:the casting process and raw material, so the reason was obtained.
通过工艺试验从铸造工艺和原材料质量两方面进行原因查找，获得了现有生产条件下造成硬度偏低的原因。
By simulated test, the co-relationship among the slip granulometric composition, slurry deflocculation curve, mid-high pressure casting forming speed and green body shaping endurance is studied.
通过模拟试验，研究了泥浆的颗粒组成与泥浆的解胶曲线、高中压注浆成形速率及坯体挺形性等的关系。
The test indicates that contact fatigue life and wear resistance of surface quenched casting steels and Bainite quenched spherical cast iron are increased largely.
试验表明：经过表面淬火的铸钢和经过贝氏体淬火的球墨铸铁，其接触疲劳寿命和耐磨性大幅度提高。
In order to achieve progressive solidification for roll, the test equipment of electromagnetic hemicontinuous compound casting has been designed.
为了实现轧辊的顺序凝固，设计了一套电磁半连续复合铸造试验装置。
The service condition of aluminium alloy casting dies are analysed in this paper. The test of vacuum heat treatment process by high pressure gas quenching for the dies have been carried out.
分析了大、中型铝合金压铸模的工作条件，进行了真空高压气冷热处理工艺的试验研究，选出了适宜的工艺参数，并应用于生产。
Dental alloy test pieces were made by casting, among them, 16 test pieces were Ni-Cr alloys and 8 ones were gold alloys.
采用铸造方法制作牙科合金试样，分别为：普通镍铬合金16个，贵金属合金8个，并对8个镍铬合金试件清洗后行镀金处理。
Studying the nearby liquidus semi -continuous casting technics of A356alloy by means of orthogonal test.
选用正交试验法，研究了A356铝合金近液相线半连续铸造工艺参数的影响。
Having analyzed the data measured by this instrument, it is testified that the conventional instrument used for die casting technology parameter test can be substituted with this instrument.
通过对于使用这种测试仪测得数据所进行的分析，证明它可以取代常规仪表测试压铸工艺参数。
So, must want to make casting and pouring the concrete quality control before work, this paper expounds the main points of the concrete test, for the future work to provide the basis.
故，必须要做好浇筑时和浇筑前混凝土质量控制的工作，本文阐述了混凝土试验的各项要点，为以后的工作提供了依据。
On the Baosteel continuous casting test platform, the mold friction tests with hydraulic oscillation system were carried out.
基于宝钢板坯连铸试验平台，开展了液压振动下的结晶器摩擦力检测实验研究。
A spray cooling system is thus set up for simulation in lab to test the step signal from the conventional, integral separated and fuzzy self-adaptive PID controllers and the simulated casting.
因此，设立一个喷雾冷却系统模拟实验室测试的阶跃信号的传统，积分分离模糊自适应PID控制器和模拟铸造。
The test result showed that cooling-solidifying duration of the casting under the simulation environment was lengthened by 300% compared with that of air cooling.
试验结果表明，铸件在模拟环境下的冷却凝固时间比空冷凝固时间延长了300%。
The general description, main points of design, technological improvements in valve body casting and test methods of the said valve are discussed.
论述球铁高压燃气闸阀的概况、设计要点、壳体浇铸工艺性的改进和试验方法。
API 598 test standard requires no visible external leakage (gasket, packing chamber and casting).
API 598测试标准要求没有肉眼可见的外泄漏。
The casting concrete test piece is used to carry out blasting experiment under laboratory conditions, and then calculations are conducted using fore-mentioned approaches.
在实验室条件下采用浇注的混凝土试件代替岩石进行爆破实验，然后应用提出的方法进行了分维数计算。
The slip properties of the pressure casting on sanitary wares are studied, through a series of test, the influence of the slip properties of the slip casting process are discussed.
研究了卫生陶瓷压力注浆成型的泥浆性能，通过一系列试验，讨论了泥浆性能对压力注浆成型的影响。
In this paper, the design and test of the thin slab casting testing unit built in Lanzhou Steel Plant is introduced.
本文介绍建立在兰州钢厂的薄板坯连铸试验机组的设计和试验情况，对机组构成及其性能参数、设计特点作了较详细地叙述。
In this paper, the design and test of the thin slab casting testing unit built in Lanzhou Steel Plant is introduced.
本文介绍建立在兰州钢厂的薄板坯连铸试验机组的设计和试验情况，对机组构成及其性能参数、设计特点作了较详细地叙述。
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