With the development of our society, the ordinary five-seater car has become increasingly unable to meet our needs. This has led many car owners to turn their attention to a seven-seat home business vehicle . Two people, and the car has more space. So when choosing a home business vehicle, how do you choose? According to the different economic ability of each person, the requirements for domestic commercial vehicles are also different. Below 100,000 yuan, Baojun 730 can be purchased. It is also the first 7-seater commercial vehicle under the Baojun brand, which not only continues the concise features of Baojun. In addition, it has also undergone innovations in appearance and interior design. It is slightly higher in positioning than Wuling Hongguang s, and is mainly used to meet family needs. About 100,000 yuan can be considered Zhengzhou Nissan n v200, this model is the most important feature is very affordable, but it also has a large space, whether it is commercial or home is an excellent choice. Zhengzhou Nissan has also equipped it with a new family-style grille, adding a warm and romantic interior light color, and also carried out very humanized adjustments and upgrades on steering wheels, handles and other places. 200,000 or so, you can choose FAW Mazda 8, although this model since the listing, the sales are terrible, but its basic configuration is very complete, and the application of a good sense of control, the most important thing is that its appearance is very domineering, very Suitable for young people. Around 300,000 words, you can choose the new generation of Odyssey, which is also a recent high-profile model. In addition to its stylish appearance, it also has a flexible space, and its appearance is even more earth-shaking. Change not only has a stylish style, but also has a stable, full of characteristics. These four models are currently the highest value of seven home business vehicles , and are among the best in the same price range. If you are starting, these can be used as a reference.
The common material of low-pressure casting is A356\ZL101\ZL101A,this kind of material is usually applied to auto part, storage part,transformation part,etc.
The pressure on the surface of the molten metal is 0.06~0.12Mpa.This processing has good shrinkage, casting tissue is dense, easy to produce the large thin-walled complex parts, the casting head is not needed , metal yield can be up to 95%.
Low pressure casting can adopt sand type, metal type, graphite type, etc. The filling process is not only different from gravity casting such as metal casting and sand casting, but also different from high pressure and high speed filling pressure casting, which has the following advantages:
1) Pure metal liquid filling type, which improves the purity of the casting. Because the slag generally floats on the surface of the metal liquid, and the low pressure casting by the metal liquid in the lower part of the crucible realizes the filling through the lifting pipe, which completely avoids the possibility of the slag into the cast cavity.
2) The metal liquid filling type is smooth, reducing or avoiding the turnover, impact and splashing phenomenon of the metal liquid when filling the type, thus reducing the formation of less oxide slag.
3) The casting molding performance is good, the metal liquid filling under the pressure action, can improve the fluidity of the metal liquid, is conducive to the formation of clear outline, smooth surface casting, for the formation of large thin-wall casting is more favorable.
4) The casting crystallizes and solidifies under pressure, which can be fully condensed, and the casting structure is compact.
5) Improve the yield of metal liquid, generally do not need to burst, and the same metal in the lifting tube can be returned to the crucible, reuse, so that the yield of metal liquid greatly increased, the yield can generally reach 90%.
6) Convenient production and operation, good working conditions, high production efficiency, easy to achieve mechanization and automation.
Low pressure casting also has some disadvantages, equipment and mold investment is large; in the production of aluminum alloy casting, crucible and lift pipe long time with metal liquid contact, easy to erosion and scrap, will also make the metal liquid iron and performance deterioration.
Low-pressure Casting Parts,A356 casting parts,A356 low-pressure casting parts,ZL101 casting parts,ZL101 low-pressure casting parts,A356 casting components NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , https://www.aldiecastings.com
Low-pressure casting was the earliest anti-gravity casting technology, which was first used in industrial production in the 1940s. Nowadays, low-pressure casting is mainly used in the production of aluminum alloy and magnesium alloy parts, such as the automotive hub of the automobile industry, the cylinder body, cylinder head, piston, missile shell, impeller, air guide wheel and other castings with complex shapes and high quality requirements.