Surface treatment and repair of PE pipe and fittings
Jan 03,2020
During the production process of PE pipe and fittings, due to the influence of the environment, certain defects will be formed on the surface of the pipe, such as rough surfaces or groove marks on the surface.
If the surface of the PE pipe and pipe fittings manufacturer's product is rough, it may be because the temperature of the main engine head is too high or too low, causing the rough outer surface. The core mold temperature is too low and the fuselage temperature is too low, which can easily cause the inner surface to be rough. The cooling water temperature is too high and the surface is rough. Decrease the cooling water temperature, PP-R preferably has a cooling water temperature of 20 to 30 degrees Celsius. In this case, PE pipe and pipe fitting manufacturers should check the waterway for blockages and insufficient water pressure, check the heating coil for damage, check the performance of the raw materials, consult the raw material supplier, and clean the core temperature of the mold, if it is higher than the die section Temperature, open the core temperature adjustment device, check and clean the mold for impurities.
And if there are groove marks on the surface of the pipe, the PE pipe and pipe fittings manufacturer should check and adjust the water outlet of the calibrating sleeve, balance the pressure, adjust the spray nozzle angle to make the pipe cool uniformly, and check the sizing sleeve, cutting machine and other objects for debris ,glitch.
PE pipe fitting repair method:
When the damaged part of the outer wall of the PE pipe shows a broken pipe wall or a hole with a length of less than 0.1m, use a scraper to completely remove the broken pipe wall or hole. Within 0.05m of the removed part, clean it with cyclohexanone and brush with good water resistance. Remove the arc-shaped plate with twice the damage area from the corresponding part of the same pipe, and apply adhesive buckle on the inner wall to the damaged part, and fix it with lead wire. If there are ribs on the outer wall of the tube, remove the ribs within 0.05m around the damaged part, scrape off the ribs, and take the same method to remedy.
When the local or small part of the outer wall of the PE pipe has cracks or holes within 0.02m, the water in the pipe can be drained first, the damaged part can be cleaned up with cotton yarn, and then the base surface is brushed with cyclohexanone, and the water resistance is good. Plastic adhesive; similarly sized plates are removed from the corresponding parts of the unused pipe, bonded, geotextile wrapped and fixed, and the soil can be restored after curing for 24 hours.
PREVIOUS:
Contact Us
E-mail:
gjl@jydjsy.com
Mr.Gu (Tel):
86-18961696788 / 86-510-86378220
Tel:
86-510-86370651 / 86-510-86371315
Phone/WhatsApp:
Email:
Our high-quality production benefits from rich production experience and careful selection of raw materials.
HUATAO GROUP
Leave Message