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Procedure and maintenance of PFA tube extruder
- Categories:News
- Author:PFA tube lady
- Origin:DANKAI
- Time of issue:2003-05-02 17:53
- Views:
Procedure and maintenance of PFA tube extruder
- Categories:News
- Author:PFA tube lady
- Origin:DANKAI
- Time of issue:2003-05-02 17:53
- Views:
After constant temperature, you can run the car. Before starting the car, you should tighten the flange bolts of the machine head and extruder again to eliminate the difference between the thermal expansion of the bolts and the machine head. The tightening sequence of the bolts of the machine head is oblique tightening with even force. When tightening the nut of the head flange, the surrounding tightness should be consistent, otherwise the material should be run. When driving, select and prepare the driving button, connect the driving button again, then slowly rotate the screw speed regulating button, the screw speed slowly start. Then gradually accelerated, while a small amount of feed. Feed to pay close attention to the host current ammeter and a variety of indicator head indication changes. Screw torque shall not exceed the red standard value (generally 65%-75% of the torque table). Before extrusion of PFA tube, no one can stand in front of the head mold, in case of breakage of bolts or original moist bubble release, which may cause damage to safety accidents. After the plastic is extruded from the head mold, the extrudates are cooled slowly, the equipment is moved and the mold is shaped, and then the adjustment is carried out according to the indicated value of the manipulator.
The PFA tube extruder is generally called the main machine, and the subsequent molding machine is called the auxiliary machine. After more than 300 years of development, PFA tube extruders have acquired twin-screw, multi-screw, and even no-screw and other models from the original single screw. PFA tube extruder (host) can be matched with a variety of plastic forming auxiliary equipment, such as pipeline, film, retaining material, monofilaments, flat steel wire, packaging belt, extrusion mesh, plate (sheet) material, special-shaped material, granulation, wire covering, forming a variety of PFA tube extrusion molding production line, the production of various specifications of PFA tube products. Therefore, PFA tube molding machine has been widely used in plastic processing industry.
Figure 1: Extruder 1 Source: Dan Kai
With the wide application and continuous development of PFA tube extrusion technology, the types of extruder are becoming more and more new. There are mainly five classification methods as follows:
1. According to the installation position can be divided into vertical extruder and horizontal extruder;
2. According to the use, it can be divided into forming extruder, mixing and stretching extruder and feeding extruder;
3. According to the number of screws, it can be divided into non-screw extruder, single screw extruder, double screw extruder and multi-screw extruder.
4, according to the exhaust or not can be divided into exhaust extruder and non-exhaust extruder.
5. According to the exhaust extruder, it can be divided into ordinary extruder, high speed extruder and super high speed extruder.
Maintenance of extruder:
1. In order to ensure the heat dissipation of the motor and extend its service life, the PFA tube extruder equipment should be placed in a ventilated position; The machine is in good order.
2. Check the tool screws regularly. After using the new machine for 1 hour, fix the tool with the tool, fix the fixability between the screw and the tool holder. Bearings should be lubricated regularly to ensure lubrication between bearings. In order to ensure the sharpness of the cutting tool, the cutting tool should be checked regularly to ensure its sharpness and reduce the unnecessary damage to other parts caused by the blunt defect of the blade. Check the belt regularly for looseness and tighten it in time.
3. Before restarting the reinforcing blade for the second time, the residual debris in the room should be removed first to reduce the starting resistance. Because the crusher chamber will discharge powder into the rotating shaft bearing, the ash outlet under the flange should be periodically opened inertia and belt pulley housing.
4. When changing parts and tools, the gap between moving tool and fixed tool: 0.8MM is recommended for crushers with more than 20HP, and 0.5MM for crushers with less than 20HP. The thinner the re-raw material is, the gap can be properly expanded.
For more information about PFA tube extruder, please continue to pay attention to Shenzhen Dankai Technology Co., LTD.
ShenZhen DanKai Technology Co.,ltd. is an intelligent manufacturing enterprise specializing in the R & D, production, sales and service of FEP, PFA, PTFE,PVDF and other fluoroplastic tube, bar, sheet and film products as well as other insulating materials.
The company has a senior research and development team of international standards and imported fluorine plastic products production line, some fluorine plastic products passed ISO9001, SGS, FDA certification.
The main products are: ① pipe: PTFE polytetrafluoroethylene pipe, FEP pipe, PFA pipe, PVDF pipe; ② Heat-shrinkable tubes: PTFE heat-shrinkable tubes, FEP heat-shrinkable tubes, PFA heat-shrinkable tubes, PVDF heat-shrinkable tubes; ③ Plate and rod films: PTFE plate and rod film, FEP plate and rod film, PFA plate and rod film, PVDF plate and rod film; ④ Insulating materials: silica gel, PE, PVC, UPE, etc.; ⑤ Special class: PFA inlet joint, spiral pipe, spring pipe, rotary cut pipe, welding rod, tee, straight, gasket, joint, taper rod, flaring pipe, sealing pipe, braided pipe, corrugated pipe, etc. At the same time can be customized processing production of various specifications of fluorine plastic products.
This article by the teflon tube little sister original, welcome to pay attention to, take you together long knowledge!
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