How many types of solenoid valves are used in die casting machines?

It is a duplex pump, and there is a two-position four-way six-diameter solenoid valve for low pressure, which is responsible for the unloading of the low-pressure pump. For high pressure, a proportional relief valve is used, and a proportional flow valve is added for larger machines. The pumping station is so big.

There is a 10-diameter three-position four-way solenoid valve (Y type) for ejection, and a 10-diameter three-position four-way solenoid valve (O type) for core pulling. The large machine adds two core-pulling valves, including ejection, which may be a 16-bore electro-hydraulic valve.

There are 16-bore, 3-position, 4-port electro-hydraulic valves (O-type), and large machines may use 20 or 25 bore electro-hydraulic valves.

Slow injection has a 16-bore 3/4-port electro-hydraulic valve (Y-type), and larger machines may use a 20 or 25 bore electro-hydraulic valve.

The two-position four-way six-bore solenoid valve is used for fast discharge, and the ten-bore valve may be used for large machines.

There are also two two-position four-way solenoid valves, i1 type. In addition, there is a 10-bore, 2-position, 4-way electro-hydraulic valve (booster start valve).

I have done the hydraulic system of die casting machine, how many tons is your machine? The one you asked is not good, and the valves used by different machines are also different. We use Japan's multi-manial electromagnetic proportional reversing valves, in addition to EH valves, and of course some ordinary solenoid valves, it is best to provide detailed information.

It's too general, it's hard to answer, there are mainly solenoid valves for hydraulic systems and pneumatic solenoid valves, and solenoid valves for cooling will also be used. Everything is different in every household. It is best to look at your die casting machine and ask later.

First, there are many types of hammers: nickel-based, beryllium copper, ductile iron, gray iron, etc., and there are many nodular iron hammerheads. Second, there are many types of solenoid valves, such as rent in Germany and Japan solenoid valves.

If you don't move, measure the plug voltage.

Main classifications:

1. Solenoid valves are divided into three categories in principle:

Direct-acting solenoid valve.

Principle: When energized, the electromagnetic coil generates electromagnetic force to lift the closing part from the valve seat and the valve opens; When the power is off, the electromagnetic force disappears, the spring presses the shut-off against the valve seat, and the valve closes.

Features: It can work normally under vacuum, negative pressure and zero pressure, but the diameter is generally not more than 25mm.

Step-by-step direct-acting solenoid valve.

Principle: It is a combination of direct and pilot principle, when there is no pressure difference between the inlet and the outlet, after the power is on, the electromagnetic force directly lifts the pilot valve and the main valve closure up in turn, and the valve opens. When the inlet and outlet reach the starting pressure difference, after the power is applied, the pressure of the lower chamber of the electromagnetic pilot valve and the main valve rises, and the pressure of the upper chamber decreases, so as to use the pressure difference to push the main valve upward; When the power is off, the pilot valve uses the spring force or medium pressure to push the shut-off and move down to close the valve.

Features: It can also operate when there is zero pressure difference or vacuum and high pressure, but the power is large, and it must be installed horizontally.

Pilot operated solenoid valve.

Principle: When energized, the electromagnetic force opens the pilot hole, and the pressure of the upper chamber drops rapidly, forming a low and high pressure difference around the closing piece, and the fluid pressure pushes the closing part to move upward, and the valve opens; When the power is off, the spring force closes the pilot hole, and the inlet pressure quickly forms a low and high pressure difference around the closing valve through the bypass hole, and the fluid pressure pushes the closing part to move down and close the valve.

Features: The upper limit of the fluid pressure range is high, and it can be installed arbitrarily (customization required) but the fluid pressure differential condition must be met.

2. Solenoid valves are divided into six sub-categories from the differences in valve structure and materials and the difference in principle: direct-acting diaphragm structure, step-by-step direct-acting diaphragm structure, pilot diaphragm structure, direct-acting piston structure, step-by-step direct-acting piston structure, and pilot piston structure.

3. Solenoid valves are classified according to their functions: water solenoid valves, steam solenoid valves, refrigeration solenoid valves, cryogenic solenoid valves, gas solenoid valves, fire solenoid valves, ammonia solenoid valves, gas solenoid valves, liquid solenoid valves, miniature solenoid valves, pulse solenoid valves, hydraulic solenoid valves, normally open solenoid valves, oil solenoid valves, DC solenoid valves, high-pressure solenoid valves, explosion-proof solenoid valves, etc.

There are many kinds of solenoid valves, and the commonly used ones are check valves, safety valves, directional control valves, speed control valves, etc. For more details, you can go to Kuaiyiyou Automation Selection to view.

There are many classifications, solenoid valve classification: high-pressure solenoid valve, explosion-proof solenoid valve, pulse solenoid valve, two-position three-way solenoid valve, high temperature solenoid valve, pilot solenoid valve, steam solenoid valve, pneumatic solenoid valve, miniature solenoid valve, vacuum solenoid valve, water solenoid valve, stainless steel solenoid valve, solar solenoid valve, brass solenoid valve, water heater solenoid valve, plastic solenoid valve, waterproof solenoid valve, corrosion-resistant solenoid valve, normally closed solenoid valve, normally open solenoid valve, fire solenoid valve, air compressor solenoid valve.

Solenoid valves are divided into two positions and two outlets, two positions and three ways, and two positions and five ways according to the valve position form.

According to the structural principle, it is divided into: direct-acting, step-by-step direct-acting, and pilot-operated.

According to the medium and the use environment, it can also be divided into: ordinary solenoid valve (indoor at room temperature), underwater solenoid valve (underwater), rain-proof and explosion-proof solenoid valve (outdoor and high-quality gas), high-temperature solenoid valve (for steam), low-temperature solenoid valve (cold area or low temperature of medium), high-pressure solenoid valve (high pressure level).

And so on, there are many classifications. [If you need more information, you can send a private message.] ]

No, the function of the solenoid valve is to realize the opening and closing of the switch by energizing, there are many voltages for the solenoid valve, various shapes, commonly used are, oil, water, gas solenoid valve. If there are too many variety.

There are several that are not very clear. But I've seen two kinds of them myself (in terms of the number of coils that can be used to control the voltage), one is a single coil and the other is a double coil.

Uses: Generally water and steam.

Connection: wire mouth and flange.

Material: Iron, copper, stainless steel.

The temperature and pressure of water and vapor are not the same.

There are also normally open and normally closed water wire mouths.

There are 5 or 6 types of solenoid valves on injection molding machines, which are collectively referred to as solenoid valves.

The solenoid valve of the injection molding machine mainly controls the liquid circuit, and the cluster controls, and the crank rod moves back and forth, so that the mold can be opened and closed in the injection molding machine.

Solenoid valve is the basic element of automation used to control fluids, which belongs to actuators; It is not limited to hydraulics, pneumatics. Solenoid valves are used to control the direction of hydraulic flow, and the machinery of the factory is generally controlled by hydraulic steel, so solenoid valves are used.

The working principle of the solenoid valve, there is a closed cavity in the solenoid valve, there are through holes in different positions, each hole leads to a different oil pipe, the middle of the cavity is the valve, there are two electromagnets on both sides, which side of the magnet coil energized valve body will be attracted to which side, by controlling the movement of the valve body to block or leak out different oil discharge holes, and the oil inlet hole is normally open, the hydraulic oil will enter different oil discharge pipes, and then push the piston of the oil through the pressure of the oil, the piston drives the piston rod, and the piston rod drives the mechanical device to move. In this way, the mechanical movement is controlled by controlling the current of the electromagnet.

There are several kinds of solenoid valves on the injection molding machine, this is really hard to say, there are too many injection molding machines, there are about 5 or 6 kinds of general, as for what is the name, it is difficult, generally referred to as solenoid valves.

Pressure control valves: relief valves, pressure reducing valves, sequential valves.

Flow control valves: throttle valves, speed control valves, overflow speed control valves

Directional control valves: check valves, electromagnetic directional valves (two-position four-way, three-position four-way valves), hydraulic directional valves, electro-hydraulic directional valves, manual directional valves, etc.

Electromagnetic proportional control method: electromagnetic proportional pressure valve, electromagnetic proportional flow valve.