PPR pipe butt-joint hot melting connection process

Abstract

The invention provides a PPR pipe butt-joint hot melting connection process which is carried out by cooperation of a bottom frame, a driving device, two embedded frames, two extrusion units and a measuring device. By means of the PPR pipe butt-joint hot melting connection process, the problems that a manual butt joint mode is usually adopted, due to the fact that pipe openings are in transition fit during butt joint and the force of a person is small, smooth butt joint is difficult, in order to reduce the difficulty of butt joint, the person can hardly avoid rotary butt joint during butt joint, while rotary butt joint usually leads to the reduction of the tightness of a butt joint, consequently, the conditions of water leakage, air leakage and the like are caused, besides, when the butt joint is carried out, the insertion depth of the pipe openings cannot be seen, and when the depth is too shallow, the butt joint openings of two PPR pipes after the butt joint can be cracked in use.

Description

technical field [0001] The invention relates to the field of PPR pipe connection, in particular to a PPR pipe butt joint hot-melt connection process. Background technique [0002] Hot-melt is generally used as hot-melt connection. The principle of hot-melt connection is to put the nozzles of two PPR pipes close to the heating tool to heat the flat end faces until they melt. After removing the heating tool, tighten the two melted nozzles. Close together, keep the joints cool under the action of pressure, so that the two sections of pipelines are connected as a whole operation, the heat welding method improves the sealing of the joints, and avoids water leakage during use; [0003] However, some problems are often encountered when butt extruding two molten nozzles: [0004] 1. The docking is usually done manually. Due to the transitional fit and the small strength of the personnel when the nozzle is docked, it is difficult to dock smoothly. It often leads to a reduction in t...

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Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a PPR pipe butt joint hot-melt connection process, which can solve the problem that the joint is usually carried out manually. Since the pipe mouth is a transitional fit and the strength of the personnel is small, it is difficult to make a smooth joint. Reduce the difficulty of docking. It is inevitable that personnel will inadvertently rotate the docking during docking. Rotational docking often leads to a decrease in the sealing of the docking interface, resulting in water leakage, gas, etc. When docking, the depth of the nozzle insertion cannot be seen, and the depth is too deep. When it is shallow, the two PPR pipes may have problems such as cracking of the butt joint during use after butt joint

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