Introduction to screw valve
The screw valve is a new type of valve body consisting of a stator and a rotor, forming a regular geometric volume for dispensing and metering.
The special product structure design ensures smooth and pulsation-free medium delivery, and the product also features a re-suction function, completely avoiding phenomena such as dripping and stringing during medium delivery.
Application of screw valve
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Electronic industry
Screw valves are used for precise fluid metering of media such as thermosetting adhesives, thermally conductive adhesives, binders, sealants, potting adhesives, etc. They are applied in bonding, optical bonding, conformal coating, dam and filling, glob-top potting, microdispensing, underfill, packaging, etc.
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Automotive industry
High-precision metering is achieved in the application or bonding of components, as well as in the use of adhesives, sealants, casting materials, and lubricants. This technology is widely used in the automotive production process, facilitating the bonding and potting of engines, transmissions, airbags, batteries, and housing seals, as well as water coolers, oil coolers, and HVAC/R heat exchangers.
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New energy
In the application of dispensing for new energy vehicles, the focus is on handling materials with high viscosity and abrasive properties, such as dispensing thermal conductive adhesive. It is widely used in the production of batteries, battery modules, and battery packs in new energy vehicles, as well as in the application of thermal conductive adhesives, fuel cell manufacturing, motor manufacturing, and other fields for bonding, sealing, potting, and resin impregnation.
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Semiconductor
The process of semiconductor manufacturing consists of wafer fabrication, wafer testing, chip packaging, and chip testing. In the semiconductor packaging process, the dispensing technique involves attaching the chip to the packaging substrate with adhesive for fixation, extending the wiring terminals, and encapsulating them with a plastic insulating medium, achieving the effects of fixing, sealing, protecting the chip, and enhancing its electrical and thermal performance.
Characteristics of screw valve
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High-precision control
By controlling the screw pitch, rotation time, air pressure, and screw speed, a high-precision dispensing process can be achieved.
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Easy to operate
The screw valve is lightweight and compact, easy to handle, and simple and flexible to operate.
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Wide range of applicability
Suitable for various medium to high viscosity fluids, such as solder paste, UV glue, red glue, silicone glue, etc.
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Low maintenance cost
The modular design allows for quick assembly and disassembly of the connecting cavity between the valve body and the threaded rod, reducing maintenance time.
Introduction to plunger valve
The metering plunger valve is a valve that regulates flow by allowing the plunger to reciprocate within the valve body. Its basic structure comprises components such as the valve body, valve cover, valve stem, plunger, orifice frame, and sealing ring. When the motor rotates, the valve stem drives the plunger to reciprocate up and down within the orifice frame, thereby performing the function of opening and closing the valve.
Application of plunger valve
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Consumer electronics industry
Used to control the flow of adhesives, thermal conductive adhesives, potting adhesives, and other media.
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Automotive electronics industry
Used to control the flow of media such as adhesive glue, thermal conductive glue, and potting glue.
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Pharmaceutical industry
Due to the high hygiene requirements, the sealing and corrosion resistance properties of metering plunger valves make them widely used in pharmaceutical processes. In the food industry, due to their good hygiene performance, metering plunger valves can be used for flow control in food processing.
Characteristics of plunger valve
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Superior sealing performance
The tight fit between the plunger and the sealing ring ensures high sealing performance, making it suitable for high-pressure and corrosive media.
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Precise flow control
The precise movement of the plunger enables fine flow regulation, making it suitable for applications requiring accurate metering.
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Wear resistance
The slow movement between the plunger and the sealing ring reduces wear and prolongs the lifespan of the valve.
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Lightweight opening and closing
High-quality sealing materials are selected, ensuring small operating torque and flexible opening and closing.
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Convenient maintenance
Adjustment gaps are reserved in the structural design to facilitate rapid maintenance and replacement of sealing rings.
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Wide range of applicability
It can be used in various media, including fluids containing solid particles, and is suitable for high-pressure environments.
