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            CPVC、UPVC管道正確的施工方法

            SOLVENT CEMENTING WITH PRIMER 使用管道粘合劑和預粘膠水

            1. Assemble proper materials for the job (proper cement, primer and
          applicator for the size of piping system to be assembled)

            使用正確的物料施工(正確的管道膠水,預粘膠水和適當尺寸的涂抹工具)。 2. Pipe must be cut as square as
          possible. Use a hand saw and miter box or mechanical saw .A diagonal cut reduces
          bonding area in the most effective part of the joint.

            切割管道于垂直面,可用手鋸和定管盒或用機械鋸子,斜割會減少粘接面積。 3. Plastic tubing cutters may also be
          used for cutting plastic pipe however ,some produce a raised bead at the end of
          the pipe. This bead must be removed with a file or reamer, as it will wipe the
          cement away when pipe in inserted into the fitting.

            膠管管道切割器也可以切割膠管,但是用管道切割器會使切口邊緣產生圈狀粒子,因此需要用撮子來清除,如果不清除這些碎粒子,當管材插入管件時,管道邊緣的粒子會擦去膠水而影響粘接的效果。

            4. Remove all burrs from both the inside and outside of the pipe with a
          knife, file or reamer. Burrs can scrape channels into pre-softened surfaces or
          create hang-ups inside surface walls.

            用撮子或刀子清除管道內外碎粒子,因為碎粒子會擦去管內已軟化之表層而產生顆粒狀膠水懸掛在管墻上。

            5. Remove dirt, grease and moisture. A thorough wipe with a clean dry rag
          is usually sufficient.(moisture will retard cure and dirt or grease can prevent
          adhesion) 用干凈的布來抹除管內外的灰塵,油跡和水分。(水分會延長干化時間,灰塵和油跡會影響粘接強度)

            6. Check pipe and fittings for dry fit before cementing. For proper
          interference fit, fitting should go over end of pipe easily but become tight
          about 1/3 to 3/4 of the way on .

            粘接管道前要測試管材和管件結合的松緊度。在正常情形下,管道應該很容易插入管件內大約1/4到3/4左右。

            7. Use the right applicator for the size of pipe or fittings being joined.
          The applicator size should be equal to 1/2 the pipe diameter. It is important
          that a satisfactory size applicator be used to help ensure that sufficient
          layers of cement are applied.

            使用正確的涂抹器于不同尺寸的管材和管件之粘合。涂抹器寬度應該相當于管材直徑的一半,使用適當的涂抹器是非常重要的,因為它能保證抹足夠的膠水于管道的表面。

            8. Priming: the purpose of a primer is to penetrate and soften the surfaces
          so they can fuse together. The proper use of a primer and checking its softening
          effect provides assurance that the surfaces are prepared for fusion in a wide
          variety of conditions. Check the penetration or if the weather changes during
          the day. Using a knife or other sharp object, drag the edge over the coated
          surface. Proper penetration has been made if you can scratch or scrape a few
          thousandths of the primed surfaces away. Because weather conditions do affect
          priming and cementing action, repeated applications to either or both surfaces
          may be necessary. In cold

            weather , more time is required for proper penetration.

            底層預粘膠:預粘膠的作用是滲透和軟化管材和管件表面而使其表面溶化在一起。正確的使用預粘膠和測試它的軟化效果給與保證管面具備在不同環境下都會溶于一體。在安裝粘合前或如果當天天氣溫度有變化時先用一塊廢料測試滲透合軟化性。用刀或者其他利器來刮割表面涂了的預粘膠,如果你能連同預粘膠一起刮掉少許表皮就說明表面已經軟化了。天氣溫度也會影響預粘膠及膠水的效果,有必要時要重復涂抹膠水于管材和管件表面。在寒冷的天氣里,膠水的滲透需要更長時間。

            9. Using the correct applicator (as outlined in step 7), aggressively work
          the primer into fitting socket, keeping the surface and applicator wet until the
          surface has been softened. More applications may be needed for hard surfaces and
          cold weather conditions. Re-dip the applicator in primer as required. When the
          surface is primed, remove any puddles of primer from socket.

            使用正確的膠水涂抹器(在第7點已說明)用力將預粘膠涂抹于管件承口處,保持涂抹器和管面濕潤直到管面軟化為止。硬質的材料和寒冷的天氣里要涂抹更多的預粘膠,如果有需要則要再浸濕涂抹器。當管面涂有足夠的預粘膠水后,將浸在承口內多余的膠水抹去。

            10. Next, aggressively work the primer on to the end of the pipe to a point
          1/2” beyond the depth of the fitting socket.

            下一步是用力將預粘膠抹于管材要粘接管尾的表面。涂抹范圍要比承口深度高1/2英寸。

            11. A second application of primer in the socket is recommended.
          建議在粘接前多涂抹一次預粘膠于管件內。

            12. Immediately ,and while the surfaces are still wet, apply the
          appropriate。 當承口的底膠仍然濕潤時,馬上涂抹膠水于表面。

            13. Cementing; (Still the cement or shake can before using); Using the
          proper size applicator for the pipe size, aggressively work a full even layer of
          cement on to the pipe end equal to the depth of the fitting socket do not brush
          it out to a thin paint type layer, as this will dry within a few seconds.

            涂抹膠水(使用前先攪拌膠水或搖動罐子)使用適合管子尺寸的涂抹器,涂抹均勻的一層膠水于管面,膠水涂抹擦和那高度應該相當于管件的深度,涂抹膠水時不要像涂油漆一樣太薄,因為太薄干化時間太快,大約幾秒鐘。

            14. Aggressively work a medium layer of cement into the fitting socket;
          avoid pudding cement in the socket. On bell-end pipe do not coat beyond the
          socket depth or allow cement to run down into the pipe beyond the bell.

            涂抹中等厚度的一層膠水于管件承口內。當用鐘形管尾管件時不要涂抹膠水于管件管尾于直管之間的地方或不要讓膠水流向鐘形管尾。

            15. Apply a second full, even layer of cement on the pipe.
          再次均勻的涂上適量的第二層膠水在管材表面。

            16. Without delay, while cement is still wet, assemble the pipe and
          fittings. Use sufficient force to ensure that the pipe bottoms in the fitting
          socket. If possible, twist the pipe a 1/4 turn as you insert it. Stop turning
          when pipe tits bottom.

            當膠水還是濕潤時,迅速及時安裝管道和管件,用足夠的力度將管材推進底部時盡可能將管材轉動1/4圈。

            17. Hold the pipe and fitting together for approximately 30 seconds to
          avoid push put.

            然后緊握接好的管道接口約30秒左右不動直到管件不會被推出為止。

            18. After assembly, a joint should have a ring or bead of cement completely
          around the juncture of the pipe and fitting. If voids in this ring are present,
          sufficient cement was not applied and the joint may be defective.

            當接合管道工作完成后,接口應該有一膠水環繞于接口處,如果環狀接口處出現空氣泡,這表明沒有涂抹足夠的膠水于接口處而會影響粘合強度。

            19. Using a rag, remove the excess cement from the pipe and fittings,
          including the ring or bead, as it will needlessly soften the pipe and fittings
          and does not add to joint strength. Avoid disturbing or moving the joint.

            用布抹去接口處多余的膠水,包括接口處的環繞膠水圈。因為多余的膠水接口處會使其接觸的表面軟化而減弱接口附近表面強度。清楚多余膠水時盡量不要移動接口。

            20. Handle newly assembled joints carefully until initial set has taken
          place. 小心處理剛粘接好的管道直到粘接處達到初步干化為止。

            備注:安裝8”(含)以上的管道時需使用管道拉力器進行管道與管件的接合施工;且必須結合預粘劑與膠水共同使用,順序為先涂抹預粘劑于管道外壁或管件內壁,其次是在其未干的情況下立即涂抹膠水


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