Изҳороти махфият: Махфияти шумо барои мо хеле муҳим аст. Ширкати мо ваъда медиҳад, ки маълумоти шахсии шуморо ба ҳама гуна фушунӣ бо иҷозати возеҳи шумо ошкор накунад.
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After the valve is used for a long period of time, the sealing surfaces of the valve disc and the valve seat will wear out and the tightness will be reduced. Repair sealing surface is a large and important work. The main method of repair is grinding. On the serious sealing surface, is the first surfacing after grinding and then grinding. Valve grinding including cleaning and inspection process, grinding process and inspection process. 1, cleaning and inspection process Clean the sealing surface...
The material hoist is mainly used for the continuous vertical lifting of powdery, granular and small materials. It can be widely used in feed mills, flour mills, rice mills, oil mills, starch factories, grain warehouses, port terminals, etc. in various scales. Increased bulk material. The following will introduce the material hoist installation specification and material hoist model. Material hoist installation specification First, check before loading 1, the completeness and integrity of the...
In the past, non-end-sterilized sterile powder bulk drugs used internal packaging often used antibiotic glass bottles or special aluminum barrels, rubber stoppers and other components as packaging materials, in order to rough wash these components, washing, finishing wash, dry Dry, sterilize, and then put the sterile powder into the bottle, cover with a rubber stopper, and finally sealed with a plastic stopper outside the stopper. Recently, this traditional packaging method is being challenged...
Valve usually consists of valve body, valve cover, valve flap (gate), valve seat, valve stem, heat sink, packing and driving parts (hand wheel, gear box or pneumatic device, electric device, etc.).
Causes 1. cast iron casting quality is not high, the valve body and the valve body with trachoma, loose tissue, slag and other defects 2. Day cold cracking; 3. Poor welding, there is slag, welding, stress cracking, etc. Defects 4. Cast iron valve is hit by heavy objects damage prevention and solutions 1. To improve the casting quality, strictly in accordance with the provisions of the pre-installation strength test; 2. For the temperature of 0 ° and 0 ° below the valve, insulation or heat...
Zinc alloy die casting is a better die casting method. Zinc alloy die casting and aluminum alloy die casting have become two of the most mature die casting techniques in die casting technology. In the development of zinc alloy die casting, the use of zinc alloy die-casting techniques will make die-casting castings more perfect. Here are two techniques for zinc alloy die casting: Zinc alloy is an alloy composed of other elements added on the basis of zinc. Often added alloy elements are...
Gate valve body structure and valve body flow path The structure of the valve body of the gate valve is determined by the connection between the valve body and the pipe, the valve body and the valve cover, and in terms of the manufacturing method, there are several types of casting, forging, forging, casting, and tube sheet welding. The forged valve body has developed toward a large diameter, and the cast valve body has gradually developed toward a small diameter. Any type of gate valve body...
Marketing is an important driving force for auto parts companies to grow, grow and meet the company's growth. Marketing is often led by a department in the company's organization, which actually has both advantages and disadvantages. On the one hand, it is easy to focus on groups that have been trained in marketing to specialize in marketing. On the other hand, marketing should not be limited to one department of the company but should be reflected in all activities of the company. In today's...
Marketing is an important driving force for auto parts companies to grow, grow and meet the company's growth. Marketing is often led by a department in the company's organization, which actually has both advantages and disadvantages. On the one hand, it is easy to focus on groups that have been trained in marketing to specialize in marketing. On the other hand, marketing should not be limited to one department of the company but should be reflected in all activities of the company. In today's...
A vacuum pump is a common and commonly used type of pump among many pump products. It is a device that improves, generates, and maintains a vacuum in a confined space by mechanical, physical, chemical or physicochemical methods , In metallurgy, chemical industry, food, electronic coating and other industries have a wide range of applications, then it and ordinary pump What is the difference between? The most important feature of the vacuum pump is that it can form a vacuum, which can be seen...
Reverse engineering originated in the 1990s and was developed mainly with modern measurement, computer, modern manufacturing and other related technologies. Without the development of related technologies, reverse engineering has not made such great progress. The reverse engineering technology referred to here mainly includes three aspects: rapid profiling technology, rapid geometric modeling, and rapid processing technology. The main difference between reverse engineering and forward...
Method for improving the service life of die casting mold Due to the long production cycle, large investment, and high manufacturing precision, the die-casting mold has a high cost, so it is desirable that the mold has a high service life. However, due to a series of internal and external factors such as materials and machining, the mold is prematurely invalidated and scrapped, resulting in great waste. The failure modes of die-casting molds mainly include: sharp corners, cracks at the corners,...
In recent years, China's die-casting industry has increased its emphasis on scientific and technological R&D and technological innovation, and the human and material resources invested have also increased. Especially with the recent vigorous research and development, the development of the die-casting industry will be even more powerful. Compared with the traditional die-casting production procedures, the new type of die-casting hardware and electrical automation equipment controls the...
Casting valve is cast into the valve, the general casting pressure of the valve are relatively low (such as PN16, PN25, PN40, but there are high-pressure, can be 1500Lb ,, 2500Lb), most of the caliber of more than DN50. Forged valves are forged out, are generally used in the high level of the pipeline, the caliber is relatively small, are generally below DN50. First, the casting valve 1, casting: that is, the metal smelting meet certain requirements of the liquid and poured into the mold, the...
Cast steel gate valve : It is all gate valves that are cast into castings made of metal steel materials, collectively called cast steel gate valves. And also cast iron gate valve corresponding, forged steel gate valve malleable iron. The following matters should be noted in the installation and maintenance of cast steel gate valves: Handwheels, handles and transmission mechanisms are not allowed to be used for lifting, and collision is strictly prohibited. The double gate gate valve should...
Valve castings have been in a stage of rapid development in China. They are one of the largest valve casting machining centers in Asia and one of the largest valve castings markets in the world. They have their own place in the international market. In recent years, China's economic development stage has been rapid. China's valve casting industry has played an important role in preparing the manufacturing industry as an important link in the development of the national economy. It plays an...
In recent years, China's pump valve casting industry has developed rapidly, but there are still a lot of problems. Due to the long-term price war in the domestic pump and valve industry, the pump and valve industry has been stuck in the middle and low position of the world's valve industry for a long time. Therefore, our country's valve and valve industry must start from changing the competition mode and change the weak status of China's pump and valve industry. China's valve casting industry...
internal screw-type quick connector is suitable for tanker trucks, sprinklers, oil equipment, tanker parts, etc. His specifications are various, and below the introduction of the internal screw quick joint products, Inner spy female quick connector product introduction 1, aluminum alloy reducer quick connector product working pressure: 16Mpa ~ 3.2Mpa. Temperature: -20 to +230°C. 2, aluminum alloy reducer quick joint products work medium: gasoline, heavy oil, kerosene, hydraulic oil, fuel oil,...
The common quick coupling is a spare part product for connecting pipes. There are many different types of quick connectors on the market. They can be classified according to size specifications, and the corresponding models and names are also different. We should have a specific understanding of the different quick couplings, and we should also refer to the specifications between the pipe and the interface for proper matching. Next, let's take a look at what are the specifications of the quick...
In order to improve the machining accuracy and working efficiency of CNC machine tools, the temperature of the CNC machine oil tank must be controlled within a certain range. On the one hand, the change of oil temperature directly affects the change of the temperature field of CNC machine tools, and the change of temperature field affects the change of displacement field. The displacement field changes inevitably affect the machining accuracy. On the other hand, the temperature changes,...
Foreword Mold is an important process for the replacement of products (such as automobiles, motorcycles, home appliances, etc.). The quality and cycle of manufacturing directly affect the quality and time-to-market of new products. Therefore, the development and development of molds has become an important part of the development of new products. Mold mold companies that need to develop new products for high quality, short cycle and low cost have adopted advanced manufacturing technologies such...
Processing and storage of stainless steel parts Storage of stainless steel parts: There should be a special storage rack. The storage rack should be made of wood or painted carbon steel bracket or mat with rubber mat to isolate it from other metal materials such as carbon steel. When storing, the storage location should be easy to lift, and relatively isolated from other material storage areas. Protective measures should be taken to avoid contamination of stainless steel by dust, oil and rust....
NINGBO RUICAN Hardware Products Factory: specializing in the production of stainless steel hinges, flag hinges, stainless steel flag hinges, spring hinges, single spring hinges, double spring hinges, bending hinges, sub-matrix hinges, Stainless steel hinges, hinged stainless steel hinges, lift stainless steel hinges, and Deli stainless steel hinges, stainless steel door stoppers, zinc alloy door stoppers.
Изҳороти махфият: Махфияти шумо барои мо хеле муҳим аст. Ширкати мо ваъда медиҳад, ки маълумоти шахсии шуморо ба ҳама гуна фушунӣ бо иҷозати возеҳи шумо ошкор накунад.
Маълумоти бештарро пур кунед, то ки бо шумо бо шумо тамос гирад
Изҳороти махфият: Махфияти шумо барои мо хеле муҳим аст. Ширкати мо ваъда медиҳад, ки маълумоти шахсии шуморо ба ҳама гуна фушунӣ бо иҷозати возеҳи шумо ошкор накунад.