Melt Pump
- Polymer extrusion melt gear pump
- melt pump for plastic extrusion
- Polymer Reaction Kettle pump
- gear pump rubber extruder
- melt pumps for extrusion
- Melt Gear Pumps for BOPP Films
- ZB-G bearing external melt pump
- melt pump for pvc extrusion
- ZB double shaft drive melt pump
- Explanation of terms for melt pump d
- ZB-X Series chemical gear melt pump
- PID Control System for extrusion
- PLC Control System for extruder
- ZB-U series melt extrusion spinning
- ZB-E series transfer melt pump for e
- ZB-H series high temperature and hig
- ZB-R series gear melt pump for rubbe
- ZB-K series chemical stainless steel
- ZB-D series pipeline melt pump for p
- ZB-F series melt pump for reaction k
- ZB-B series dosing standard thermopl
- ZB-C series plastic granule machine
Screen Changer
- polymer melt filtration screen changer
- recycled plastic screen changer
- slide plate screen changer
- pillar screen changer
- dual bolt screen changer
- continuous screen changer
- screen changer polymer filter
- Plastic extruder filter extrusion sc
- Biodegradable plastic PBAT/PLA hydra
- Single plate hydraulic screen change
- plastic extrusion screen changer
- single plate hydraulic quick screen
- Manual control screen changer
- Double plate continuous hydraulic sc
- Automatic mesh belt continuous scree
- Double piston four screen cavities c
- Single plate double screen cavities
- Single piston double screen cavities
- Double piston four screen cavities b
- Dual Bolt double screen cavities hyd
Feeding System
- force feeder extruder
- loss in weight feeder for masterbatc
- continuous feeding system
- Liquid loss in weight feeder
- china volumetric screw doser feeder
- Multi-component loss in weight feede
- Micro loss in weight metering feeder
- Single screw gravimetric dosing feed
- Twin screw loss in weight metering f
melt blown progress
contact us
- Batte Machinery Zhengzhou Co., Ltd.
- E-mail: info@battemachinery.com
- whatsapp: +86 158 38331071
- Tel: +86 371 67991755
- After-sales Tel: +86 371 67997677 / 67997877
- Address:No.11 Changchun Road, High-tech Zone, Zhengzhou, China.
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The role and function of screen changer in PVC sheet production
The role and function of the screen changer in the production process of PVC sheets are mainly based on the following aspects:
1、 Filter impurities and improve product quality
The PVC raw material itself may contain impurities such as incompletely polymerized monomers and catalyst residues, and the impurity content in recycled plastics is even higher, such as labels, sediment, and other foreign objects. If these impurities enter plastic processing equipment, they will affect the quality of PVC sheets. The screen changer can effectively filter impurities in the melt through the filter screen on the filtering station, ensuring the purity of the plastic melt entering the mold, thereby improving the smoothness, uniformity, and pressure resistance of the product, making it more in line with market demand.
2、 Improve plasticizing effect and enhance product performance
After installing a screen changer, the back pressure of the machine head increases, which is beneficial for improving the plasticization and homogenization effect of raw materials. During the extrusion process of PVC sheets, the plasticizing effect directly affects the quality and performance of the product. The screen changer increases the back pressure of the machine head, allowing the raw materials to be more fully plasticized and homogenized during the extrusion process, thereby improving the texture and performance of the product.
3、 Avoiding product defects and improving overall quality
During the extrusion process of PVC sheets, product defects such as "winding patterns" may occur, which can affect the aesthetics and performance of the product. The application of screen changers can change the rheological behavior of materials. The "damping" effect of porous plates and filters can make the cross-sectional flow velocity of the melt more consistent, avoiding the occurrence of "polymer orientation" and laminar flow phenomena, and further improving the overall quality of the product.
4、 Improve production efficiency and reduce downtime
The screen changer significantly improves production efficiency through non-stop and fast screen changing technology. The hydraulic screen changer can perform screen changing operations without interrupting the production line, ensuring continuous operation of the production line, greatly reducing downtime, and improving production efficiency. At the same time, installing a screen changer is beneficial for removing water vapor and volatile substances from raw materials, reducing waste rates, and improving product qualification rates.
5、 Strong adaptability to meet diverse production needs
The screen changer is suitable for different types of PVC sheet extrusion production lines and can meet the production needs of products with different specifications and shapes. Its novel structure, high filtration efficiency, and automated screen changing process make the screen changer widely applicable in PVC sheet extrusion technology.
Email: info@battemachinery.com
WhatsApp: +86 158 38331071
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