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How are plastic pipes and fittings bonded together?
2018-03-07
3. When applying the adhesive, first coat the inside of the socket and then the outside of the spigot. While coating the socket, apply a uniform,适量 (appropriate amount) evenly along the axial direction—from the inner edge outward—making sure to avoid any missed spots or over-application (up to 200 g/m²).
2. The pipe cross-section should be smooth and perpendicular to the pipe axis, with chamfered edges. Before bonding, mark the insertion line clearly and perform a dry fit. During the dry fit, the insertion depth should not exceed one-third to one-half of the intended depth; if the gap exceeds this limit, bonding must not be used under any circumstances.
3. When applying the adhesive, first coat the inside of the socket and then the outside of the spigot. While coating the socket, apply a uniform,适量 (appropriate amount) evenly along the axial direction—from the inner edge outward—making sure to avoid any missed spots or over-application (up to 200 g/m²).
4. After applying the adhesive, it is recommended to maintain the applied external force unchanged for up to 1 minute, ensuring the joint remains straight and properly positioned.
5. After bonding is complete, promptly wipe off any excess adhesive that has been squeezed out. During the curing time, avoid applying force or subjecting the bonded area to any undue stress.
6. Bonded joints must not be installed in rain or water, and operations should not be conducted at temperatures below 5°C.
7. Installation Procedure: Preparation → Cleaning the Working Surface → Trial Fitting → Applying Adhesive → Bonding → Curing.
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