Can Pvc Solvent Cement Repair Torn Pvc Extension Cord Insulation

Scope of awarding
When the PVC insulation cable and sheath layer of the wire and cable take local defects, they are allowed to be repaired, such as broken mucilage, complanate pits, disconnections, wrinkles, bumps, ears, edges, breakdown, joints, etc.

Materials and equipment used:
The raw materials use plastic strips, skins, blocks and tubes of the aforementioned plastic. The raw materials should be shine, clean and free of other defects.
The instruments used are fine wooden files, knives, pair of scissors, pliers, screwdrivers, copper sheets or flat and smoothen cable paper. The power of hot-air plastic welding torch, electrical soldering atomic number 26 and welding torch for plastic welding is above 300W.

Repair method of local defect
Repair methods such equally breakdown points, holes, pits, etc.
Use a knife to trim the defect and cut into a plastic block with a gradient of 45° angle and the aforementioned size, place it on the repair area, fix it with pliers or a screwdriver, and and so use a hot air speed welding gun to continuously weld it, compact and press it with a copper sheet Tighten and flatten. When welding plastic, pay attending to the hot air temperature of the welding gun not to exist too loftier, so every bit not to burn the plastic in the repaired area. The repaired defect is tested past a spark machine, and it is qualified if it does not suspension down.
Apply a pocketknife to cut the defect of the plastic layer into a slope of 45°, remove the plastic cake or strip with the aforementioned shape, color and thickness, fix it with pliers or a screwdriver, connect it with a hot air speed welding gun, and so meaty information technology with a copper sheet , Compacted, flattened, and finally tested by spark machine, information technology is qualified without breakdown.
Scrape the plastic defect apartment with a pocketknife, fill in the recessed part with the same plastic strip under the activity of a hot-air plastic welding gun, and then flatten, shrink and compact the defect repair place with a copper canvass. Later on the spark machine test, no breakup Is qualified.

Repair Method of Large joint:
1) Repair of general large joints: cut both sides of the broken gum on the plastic layer along the circumference with a pocketknife.
Take a 45° angle slope, take a clean plastic tube with the same color and thickness, and the same length and outer diameter as the mucilage break. Cut one side of the tube forth the axis to course a 45° angle with each other. Employ thin copper cables to tie them at equal distances, so use the same plastic strip to bond and weld them under the gasbag plastic welding gun, and so use copper sheets to meaty, compact and flatten. Information technology is qualified if the spark auto does not interruption down.

two) Repair of large joints in the product procedure: During the product process, due to other reasons, the temporary finish, the sheath is asunder, and the articulation can be continuous. The method is to cutting the plastic sheath into a round slope with a 45° angle, retreat to the nose, extend into the mold core mouth for 30mm, and and then run the glue. After the glue is run, the crew volition cooperate with each other and bulldoze the automobile. Connect the plastic layers by paw, and so reshape and repair.

three) Quality defects appear on the longer length of the PVC sheath power cable from ane terminate, and most of the sheath of the other cleaved cease is proficient. The length of the cablevision is stock-still, and the repair method of large joints in the production procedure can too exist used. Simply afterward removing the defective end of the sheath, cull a larger mold on the extruder, according to the process, first extrude the end of the sheath, and gradually increase the traction speed to the large joint then that the sheath at the interface gradually It is thinned and covered on the original sheath that is cut into a slope shape, and then reshaped and repaired after the automobile is off.