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Preparation of FEP tube extruder before use
- Categories:News
- Author:PFA tube lady
- Origin:DANKAI
- Time of issue:2003-06-05 13:53
- Views:
Preparation of FEP tube extruder before use
- Categories:News
- Author:PFA tube lady
- Origin:DANKAI
- Time of issue:2003-06-05 13:53
- Views:
The application of FEP tube extruder includes a series of links such as installation, adjustment, test run, actual operation,
maintenance and overhaul of machine equipment. Its application is common to general machines and equipment, and the key is
mainly manifested in the drive motor and reducer transmission equipment. However, the working system software of FEP screw
extruder is extruder system, but it has its unique place, special attention should be paid to its characteristics when applying screw
extruder. The installation, adjustment and test run of the extruder are generally established requirements in the instructions for the
use of the extruder. Here, for the actual operation mode of the extruder, the maintenance and maintenance are described as follows:
One，Actual operation mode of extruder:
Operators must be familiar with the structural characteristics of their own operation of the extruder, especially to properly grasp the
structural characteristics of the screw, heating and cooling control instrument characteristics, head characteristics and assembly
conditions, so as to facilitate the proper grasp of the extruder processing standards, appropriate actual operation of the machine
equipment. The actual process of extruding different plastics is different, but also different. The following details the actual
operation steps and precautions for various products.
Two，Preparation of FEP tube extruder before operation.
(1) FEP raw materials for extrusion molding shall meet the required drying requirements, and further drying shall be carried out if
necessary. Raw materials should be screened to remove bulk particles and mechanical impurities.
(2) Check whether the water, electricity and gas systems in the equipment are normal to ensure that the water and gas channels are
smooth, the electrical system is normal, and the heating system, temperature control and various instruments are reliable; Assist the
machine to run the empty car at low speed and observe the normal operation of the equipment; Start the vacuum pump of the
setting table and observe that everything is working normally. In a variety of equipment in the embellishment of refueling
embellishment. If a fault is found, remove it immediately.
(3) Installation of head and styling sleeve. Head specifications should be selected according to the type and size of the product.
Figure 1: Extruder 1 Source: Dan Kai
Three,The installation of the head shall be carried out in the following order.
① The nose is assembled together and installed on the FEP tube extruder as a whole.
(2) Before assembling the head, please wipe off the grease on the preservation, carefully check whether there are scars, rust spots,
necessary grinding on the surface of the cavity, and apply silicone oil on the flowing road surface.
③ Assemble each plate of the head in sequence, apply the high-temperature grease to the bolt threads, and tighten the bolts and
flanges.
(4) A porous plate is placed between the flange of the head to ensure that the porous plate is pressed tightly and does not overflow.
⑤ Adjust the horizontal position of the opening die, adjust the level of the square head, and then tighten the fastening bolts of the
connecting flange between the head and the FEP tube extruder. The circular head is adjusted according to the rubber bottom
surface of the molding model.
⑥ Tighten the connection flange bolt, tighten the head, screw back the bolt, install the heating ring and thermocouple, pay
attention to the heating ring should be close to the surface of the head.
⑦ Install the shaping sleeve and adjust in place, check the host, shaping sleeve is aligned with the tractor line. After adjustment,
tighten the fixing bolts. Connect the water pipe with the fixed sleeve and the vacuum pipe.
⑧ Open the heating power supply, simple and even heating the heating head and machine. Open the inlet valve of the cooling
water and exhaust vacuum pump at the bottom of the hopper and gearbox.
When heating, the temperature of each section is adjusted to 320℃, and then kept for 30-40 minutes when it rises to 320℃, and
then rises to the temperature of normal production. When the temperature rises to normal production, keep about 10 minutes, so
that the temperature of each section of the machine is stable, before driving production. According to the extruder and plastic
material variety, the holding time is different. Hold heat for a period of time, so that the internal and external temperature of the
machine is consistent, so as to avoid the temperature indicated by the instrument reaching the required temperature, but the actual
temperature is low. At this point, if the material is put into the FEP tube extruder, the actual temperature will be too low, resulting in
overload damage to the axial force of the machine.
For more information about FEP 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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