Based on B / S architecture of enterprise information management system heat
Pull the spindle speed when slower cooling water pressure is smaller. These measures is to ensure that aluminum bronze ingot casting porosity and shrinkage does not produce an important measure. 3 Al-bronze ingot to produce surface,
mulberry outlet, internal slag causes and preventive measures and internal surface of aluminum bronze ingot of aluminum and oxygen of residue is the product of the alumina combined result. Not due to slag before pouring into the crystal clear clean inside, or melt into the mold in the air oxidation reaction of oxygen in the slag, the slag because of its density and floating on the surface of the liquid crystal device, pull the spindle speed when unsteadiness, these will be involved in the oxidation of the liquid slag, the formation of the internal surface of slag or slag. To prevent such a casting defect, you have to ensure that the liquid inside the mold are not allowed to exist or liquid residue and slag separately. When the mold residue on the surface, let the liquid slag floating on the surface, rather than letting the liquid residue involved in the internal and the casting surface. This requires casting ingot pulling slowly but surely. At present, many are open to semi-continuous casting method, not black cover. When aluminum bronze ingot casting mold when the liquid will form in a thin layer of aluminum oxide film, oxide film on the liquid that the protective effect. Core with a stove furnace melting aluminum bronze, in the pouring liquid can be inserted into the funnel, the liquid completely rely on the formation of the alumina film of liquid to protect, but to pull the spindle speed stability, not to damage the surface of the liquid oxide film, it can avoid internal aluminum bronze slag and slag surface, shown in Figure 1. If the furnace is used in coreless furnaces, coreless furnaces because there is no casting stove, pouring liquid into the funnel can be placed in a mold level above the graphite crucible, the size and the corresponding mold cavity section size. Buried in the funnel at the end of the work surface of about 10 ~ 15mm. The outer edge of the funnel and the lower left between the mold wall,
######## oakley sunglasses, about 2O ~ 30n3. n3. Open appearance of liquid metal, the liquid surface without any cover completely rely on the natural form of aluminum oxide film to protect, shown in Figure 2. Luj 1 cored 2 coreless furnace melting furnace melting 1-burner; 2-- graphite _ funnel; 3 a convex arc surface; inside the BU end product sets; 5 a liquid: 6-mold coat; 7 a The principle is the ingot surface density of the oxide film, the metal surface of the alumina film leaving the protection of the open arc. When the funnel end of larvae L outflow of copper mold wall to the fluid flow direction, the convex curved surface of the oxide film also followed along the same direction. Oxide film on the liquid melt hole in the protective effect. Wait until the next turn to move the wall after the mold formation of the natural surface of the casting. This method is a closed casting foundry. Funnel in the copper solution with the mold in the copper liquid through the middle hole of the funnel is equivalent to a slag filter plate. Chang Lu metal in the mold surface is continuous and dense oxide film closely protected. Received date :2004 -09-09 (Continued from page 65) real-time process parameters saved to the database. (2) commissioned a single management: including the heat treatment process of commissioning a single entry,
herve leger toronto, query, modify, heat treatment of customer data entry, query, modify and so on. (3) equipment contract management: including heat treatment equipment contract entry,
radii shoes sale, query, modify, heat treatment equipment demand-side data entry, query, modify and so on. (4) User Management: It is the management of the system users, including user rights to modify,
air jordan high heels, change user passwords, delete users, add new users. (5) Change Password: The password is user maintenance. All of these system functions through a browser on the LAN or 1NTERNERT any operation on a single machine to achieve. The user to operate must be verified by the account password. Not all users can operate the five-part, each user has their own rights. Only the highest authority of the user can operate the user management. 4 Conclusion Currently, the country has a lot of existing enterprise information management system, but less widespread. Many small systems are stand-alone, can not use the Internet to operate, even if C / S (Client / device works on show) mode, can not use the Internet for information operations. The larger system, such as ERP (enterprise resource planning), MRP (Material Requirements Planning), MRP Ⅱ (manufacturing resource planning), etc., fully functional, but difficult to operate, convenient maintenance, require substantial human and material resources to maintain the system for large enterprises, small and medium enterprises do not need to spend a lot of money to the introduction of these large systems. This great need for small and medium enterprises to develop a convenient operation, flexible, easy maintenance, low investment costs, practical information management system, and have a network function, through the LAN or the Internet to operate. The system was developed in response to this demand, in the heat processing and heat treatment equipment manufacturers in applications with high performance and low cost. Field
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