www.bewet.fora.pl

loczytzn

SPAL-temperature liquid argon will cover the method used in smelting

An effective quality system should include process control and stability, product quality, and product quality and production run follow-up survey. Periodic monitoring data is necessary in order to determine the need for change control whereby elements, replace, relaxing or tightening control. Discussed the production of investment casting control requirements of each process, including raw materials,[link widoczny dla zalogowanych], intermediate products 64, the operation of workers,[link widoczny dla zalogowanych], technicians, equipment, technology and processes and so on. 20030107DavidC. One step from simulation to optimization. Incast, 2002 (5): 18 ~ 23 casting process computer simulation is increasingly being used for investment casting production to improve product quality, reduce production costs and shorten production lead time. However, a deficiency of this technology is that the results and optimize the process still relies on manual intervention, so the computer trial and error is still inevitable. Method described in this paper is to make computer simulations to multi-factor optimization step. Optimization program allows the computer to search the best parameters without human intervention. This technology was initially used to automatically improve product design to reduce the quality and increase its carrying capacity, has been successfully used to produce metal castings. Also describes some applications of this technology to solve the problem of casting, the new trial, and optimize the casting process and other aspects of examples. 20030108TomJ. The production of lost wax casting and how the roasting process energy. Incast, 2002 (3) :19-21 energy consumption for the casting cost is always one of the most important. Recently, the U.S. natural gas and electricity prices rise, energy efficiency issues to improve the procedure referred to Et-way up again. Discussed in the dewaxing, roasting,[link widoczny dla zalogowanych], and how the process of preheating energy shell. For different types of devices (such as channel-type furnace, box furnace, electric furnace, gas stove, etc.) and different operating methods (such as continuous operation and batch operation at furnace, steam dewaxing and flash fire dewaxing, etc.) are analyzed and compared . Finally, some casting plant also introduced an effective energy conservation measures. 20030109NicholasO. Additional pressure to take the best water system excision. Incast, 20o2 (7): 16 ~ 21 to take the system to improve the efficiency of water removal and the development of additional pressure grinding technology, compared to traditional manual grinding is concerned,[link widoczny dla zalogowanych], not only reduces labor costs, but also reduces Abrasives consumption. Different grinding methods were evaluated to explore the impact of abrasive quality of life and grinding parameters. 20030110MagnullonT, ArnbergL. Hypoeutectic AJ. si alloy density and solidification shrinkage. Met. andMat. Tram. , 2001,32 A, 10:257 ~ 261 Archimedes method with the indirect determination of the hypoeutectic AJ. si alloy liquid and solid density. KC1 and LiC1 salt used as a salt solution. The method can be measured in the same experiment the density of liquid and solid, thus reducing the assessment of systematic errors when solidification shrinkage. The results showed that, liquid A1. Si alloys with Si content increases the density increases, while the Si reduce solid contraction. si was reduced solidification shrinkage, reduced from a purely A16.6% 4.40 / 0. 20030111BrueckS. Space Sand - a new type of light metal casting for the core material. Giesserei-Praxis, 2002 (9): 343 ~ 348 Space sand is a porous polymer materials and practices from the sand by an integrated product of a subtle eye of porous material, it is Aerogel technology, through aggregation and condensation product produced by the combination. This wet gel state in supercritical drying temperature to very low density, porous organic material can also be used in recent years, the production, the main component of Q hydroquinone c6H4 (OH2) and formaldehyde, HCHO, in Germany, has been used light metal foundry core sand. Than the ferrous metal castings, aluminum castings are a special problem, because of its low casting temperature, the adhesive bond not easily broken bridge, with the mechanical removal difficult, especially in thin-walled aluminum casting and the inner hole in its side of the cavity easily cleaned, resulting in damage or deformation of casting, and sand binder space heating can burn through the loss of transformation,[link widoczny dla zalogowanych], the problem is completely resolved out of sand, making sand used in the space of resorcinol and formaldehyde at equivalent concentration 1:3 ratio of mixed to NazCO3 as a catalyst, and then add to eliminate ionization hydrogel mixed with sand and sealed in air under the gel, the wet gel and sand mixture in the drying temperature is 20-24 ℃ produce a space used for production of sand cores.

相关的主题文章：

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]