Domestic screw pump and imported screw pump difference? What is high imitation?

Today our company to give you some knowledge. According to the comprehensive aspects of the product, each has its own advantages and disadvantages, domestic screw pump you find the strength of the regular factory, the quality is not worse than the import, the pressure can also reach 150 kg and above, but if you have to make a comparison, the imported material is indeed better than the domestic, which we may all know. The disadvantage of import is that it is relatively expensive, the cost performance is not high, and the single screw pump is also relatively high-end in domestic manufacturers. Especially in the lubrication industry with the single screw pump, the domestic also after decades of experience precipitation, in general is not worse than the imported where to go, and manufacturers are in the country, the speed of after-sales, more assured use.

The single screw pump was invented by the French engineer Moineau in 1932 and made by the German PCM pump company. The three-screw pump was invented and manufactured by IMO Company of Sweden in 1931. In China in the early 1960s developed a Marine high pressure small flow screw pump, and then has expanded into a single, double, three screw pump professional factory; In the 1970s, five screw pumps were developed. In 1984, after the introduction of the manufacturing technology of Allweiler company in Germany and the 2AC screw milling machine and supporting equipment of Holroyd company in Britain, China began to mass-produce screw pumps. 20 years behind foreign countries.

Nowadays, the annual output of single and double screw pumps and multi-screw pumps in China totals more than 100,000 units, accounting for more than half of the output of three-screw pumps, followed by single and double screw pumps. From the material above, the screw pump rotor due to poor working conditions, so the material selection is better than the air compressor, refrigerator screw, such as the selection of 38CrMoAl, 40Cr, 20Cr13, 16Mn, CrS5, often need to nitriding hardening (HRc56-65). There are also CrNi, CrMo, CrNiMo stainless steel, MnCrS steel and so on. From the characteristics above, the screw pump at this stage is still a medium with high solid content, the flow rate tends to be stable, the low speed is more obvious, and the volume of the medium with different viscosity can be transported by a pump with more and more small, light weight, low noise and easy maintenance. In terms of use, single screw pump has been successfully applied in the chemical industry, exploration and mining, shipbuilding, ceramic industry and energy industry. Screw pumps are widely used and play an increasingly important role in industry and life.

So what is high imitation?

The so-called 1:1 is high imitation, high imitation is very high requirements for details, and the original can be said to be the same. All items are strictly replicas of the real thing. High imitation refers to the imitation of the original shape, material and function of the imitation object. As a term, high imitation is commonly used in the imitation of high-end consumer goods with low technical barriers to production, such as imitation leather goods, handbags, glasses and other international luxury brands. High imitation is not only to copy the main or all elements of the original appearance, but also to retain the brand identity of the original, so that high imitation goods are actually highly simulated counterfeit goods. The appearance and workmanship of high imitation goods are highly imitation of the genuine goods, especially the appearance and its similarity, so ordinary consumers can not tell the true and false without looking carefully. The price of high imitation goods is usually only one tenth of the genuine goods, and because the material and workmanship are similar to the genuine goods, the cost performance is generally higher, so not only in the domestic, in the international market also has a larger.

Some companies and some personnel blurt out what is high imitation when they do not understand the definition of the word "high imitation", in fact, where there is high imitation, domestic is domestic products, imports are imported products, or there is an essential difference. China's screw pump technology with the precipitation and technology accumulation of time, screw pump continues to play an irreplaceable role in various industries, more and more attention to the research and development of screw pump, domestic screw pump in the development has also made a lot of achievements, domestic can also win imports.

Key words: The difference between domestic screw pump, high imitation screw pump and imported screw pump