UAV accessories

Daily maintenance management of hardware stamping dies

In the process of using stamping dies, the main parts of the dies will lose their original performance and precision due to the natural wear and tear of the parts, unreasonable manufacturing process of the dies, improper installation or use of the dies on the machine tools and equipment failure. The technical condition of the die deteriorates, which affects the normal production and efficiency as well as the quality of the products. So we need to do a good job of maintenance in order to make the stamping die work better and increase the service life of time. What daily maintenance should be paid attention to in general? There are three stages of daily maintenance that need attention.

Dimensional tolerance standard of metal stamping parts

Metal stamping is a commonly used metal processing method in China. In the production process of workpieces, it is difficult to achieve absolute accuracy in the size of metal stamping parts due to the combined influence of various factors such as the processing accuracy of machines and equipment, die wear and tear, and processing errors.

What to pay attention to when stamping stainless steel

In the use of stamping materials, stainless steel materials are used mostly. What should we know in advance about stainless steel stamping? In order to avoid unnecessary situations?

What are the structure and characteristics of centrifugal oil pump?

What are the structure and characteristics of centrifugal oil pump? Answer: Generally, centrifugal oil pumps have many structural forms, including single-stage single-suction and single-stage double-suction cantilever structures; two-stage single-suction and two-stage double-suction support structures at both ends; and multi-stage segmented structures. formula and other structural forms. Their internal structure is roughly the same as the corresponding general centrifugal pumps, but they generally have the following characteristics: 1. In order to reduce the influence of temperature on the pump shaft, the support of the pump body is mostly in the center. For some oil pumps with high conveying temperature, in order to prevent the eccentric movement or jamming of the pump due to thermal expansion during operation, there are generally positioned sliding guides at the bottom of the pump. 2. According to the different temperature and corrosion degree of the conveyed liquid, three types of materials are used for main parts such as pump cover, pump body and impeller. The first category is cast iron, which is not resistant to corrosion, and the operating temperature is -20~200℃. The second category is cast steel, which is not resistant to corrosion, and the operating temperature is -45~400 °C. The third category is alloy steel, which is resistant to medium sulfur corrosion, and the operating temperature is -45~400 °C.

The arrangement and foundation of the pump unit

1. The arrangement of the pump unit The arrangement of pump units is an important part of the arrangement in the pump station, which determines the size of the construction area of ​​the pump room. The unit spacing is based on the principle of not hindering the needs of operation and maintenance. The layout of the unit should ensure safe operation, convenient loading and unloading, maintenance and management, short total pipeline length, small joint fittings, and small head loss, and the room for expansion of the pumping station should be considered. The basic forms of unit arrangement are as follows. 1. vertical arrangement When arranged longitudinally, the axes of each pump unit are parallel, as shown in Figure 1. The longitudinal arrangement is compact, the motor shaft is convenient to pull out, and the building area is small, but the pump room has a large span, many pipe fittings, and poor hydraulic conditions. Generally, bridge cranes are required for hoisting. Longitudinal arrangement is suitable for example IS single-stage single-suction cantilever centrifugal pump. Since the top of the cantilever pump system enters the water, the vertical arrangement can keep the suction pipe straight (Pump 1 in Figure 1). If there are centrifugal pumps with both lateral inlet and lateral outlet in the pump room (both pumps 2 in Figure 1 are SH type or SA type pumps), the scheme of longitudinal arrangement is debatable. If the SH-type pumps are in the majority, the longitudinal arrangement is not desirable. For example, when the 20SH-9 pump is arranged vertically, the width of the pump plus the size of the suction nozzle and the length of two 90° elbows totals 3.9m (Figure 2). If it is arranged horizontally, the width of the pump is 4.1m, and its width is not much larger than that of the vertical row, but the hydraulic conditions of the inlet and outlet are greatly improved, which can save a lot of power consumption in long-term operation.

Introduction to the basic characteristics of stainless steel submersible sewage pump products

Features of stainless steel submersible sewage pump: ​​ 1. The unique single-blade or double-blade impeller structure greatly improves the ability of dirt to pass through, and can effectively pass through the fibrous material 5 times the diameter of the pump and the solid particles with a diameter of about 50% of the pump diameter. ​​ 2. The mechanical seal adopts a new type of hard and corrosion-resistant tungsten carbide material, and at the same time, the seal is improved to a double-face seal, so that it can run in the oil chamber for a long time, and the pump can run safely and continuously for more than 8,000 hours. ​​ 3. The overall structure is compact, the volume is small, the noise is low, the energy saving effect is remarkable, and the maintenance is convenient. There is no need to build a pump room, just submerge in the water, and the work can greatly reduce the project cost. ​​ 4. The high sugar content anti-interference water leakage detection sensor is installed in the sealed oil chamber of the pump, and the thermal element is embedded in the stator winding, which absolutely protects the pump motor. ​​ 5. It can be equipped with a fully automatic safety protection control cabinet according to the needs of users, which can absolutely protect the pump's water leakage, electric leakage, overload and over-temperature, etc., which improves the safety and reliability of the product. ​​ 6. The float switch can automatically control the start and stop of the pump according to the required liquid level change, without the need for special personnel, and it is extremely convenient to use. ​​ 7. It can be equipped with a dual-rail automatic coupling installation system according to user needs, which brings great convenience to installation and maintenance, and people do not need to enter the sump for this purpose. ​​ 8. It can be used in the full lift range, and the motor will not be overloaded. ​​ 9. There are two different installation methods, fixed automatic coupling installation system and mobile free installation system.

Production and processing characteristics of the precision stamping manufacturing process

Precision stamping manufacturing process has become an important part in the parts industry, and most of the stamping hardware is used in the fields of aerospace, automobile, ship, machinery, chemical industry and so on. So how does the precision stamping manufacturing process produce and process? Precision stamping process has high production efficiency and is easy to operate, and is easy to realize mechanization and automation. For the precision stamping manufacturing process as a whole, the precision stamping process is mainly influenced by two factors: the type of equipment and the material of the workpiece.

Air energy heat pump products are developing towards diversified performance

It is understood that air energy heating used in commercial places generally belongs to a part of system engineering. For example, Bolang Company generally adds heating function in its swimming pool heat pump project. In the application, it may be combined with solar energy as a heat source, or electric auxiliary equipment may be added. , and so on. Therefore, the air energy heating products referred to on the market are mainly household products.

Energy-saving ground source heat pump has become an important direction of heating and air-conditioning energy saving in engineering

Ground source heat pump technology is a renewable energy technology that utilizes shallow underground geothermal resources and transfers heat energy from low temperature to high temperature by inputting a small amount of high-grade energy (such as electrical energy) to solve heating and cooling problems. With the development and maturity of related technologies, the application of ground source heat pump technology in heating and air conditioning has developed rapidly.

Remanufacturing: a new value strategy in the field of machinery and equipment manufacturing

According to the statistics of Argonne National Laboratory in the United States, the remanufacturing activities in the United States have a very obvious role in saving energy: the energy consumption of a newly manufactured car is 6 times that of remanufacturing, and the energy consumption of a newly manufactured car engine is 6 times that of remanufacturing. The energy consumption of a newly manufactured automobile generator is 7 times that of remanufacturing, and the energy consumption of a newly manufactured automobile engine key components is twice that of remanufacturing.