PTFE Paste Extrusion Related Equipments
A solid-melting furnace, the two sides of the furnace body of the solid-melting furnace are respectively provided with a feeding door and a discharging door; A workpiece conveyor belt that can place workpieces, a plurality of heating units are respectively arranged in the furnace along the feeding direction, and the heating units include an air guide device, a heat radiation tube and a heat circulation fan. The cover is arranged above the workpiece conveyor belt, the thermal circulation fan and the heat radiation pipe are fixed in the inner recess of the air guide device, and the two sides of the inner recess of the air guide device are provided with air inlets and are connected with the air outlet of the heat circulation fan. The hot air blown by the fan is guided by the air guide device and then all blown onto the surface of the workpiece placed on the workpiece conveyor belt. The solid melting furnace can improve the guidance of the heat flow, ensure that the workpiece is heated evenly, thereby improving the heating quality, and at the same time, it can meet the requirements of the furnace. The internal temperature difference is 1.5℃~2℃. Furnace Anchor,Metal Stud Anchors,Anchors For Furnace,Refractory Fining Anchors Puyu kiln technology (jiangsu) CO.,LTD , https://www.anchorpy.com
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HOOHA Paste Extrusion Related Equipments
We have all machines for paste extrusion system.
Blender
Blender mixes raw PTFE powder and lubricant (naphtha) at the first step of paste extrusion process.
Our blender has a hollow cylinder (bottle holder) which has a plastic bottle inside. The cylinder rotates in two ways -- circumferential and axial direction. Usually the plastic bottle is made of polyethylene or PET. Rotation and time are adjustable. Because of this mechanism our blender does not cause particle shear, and it hardly grows small ball like lumps.
Pre-former
Before extruding, blended raw PTFE have to be pre-formed.
Pre-former forms blended PTFE powder into a clolumn or a cylinder with certain pressure.
Maxmum length of formed material is 1000mm (approx. 40 inches).
Specification
Item
Unit
Specification
Cylinder inner diameter
mm
16 to 250
Cylinder length
mm
600 to 2400
Number of cylinder
Â
1 to 3
Drive system
Standard equipment
Hydlauric vertical pressurization
Heating
Optional equipment
Band heaters
Feeding unit
Standard equipment
Electric Feeder
Optional equipment
Air vibrator
Oven for drying and sintering
Extruded PTFE still has lubricant and is soft an fragile. Therefore it must be sinterd in the next step. Sintering temperature is 100 to 500 degree Centigrade.
Our drying and sintering oven has a stable heat control system.
Length of the oven is 4 to 20m.
Drying capstan unit
It is a lubricant vapouring unit which is often set in wire covering line.
 Other equipments
For PTFE sheet and film, PTFE is extruded in form of tube, bead or flat plate. It requires a calendar roll system and a tentor system.
 
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