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Hōʻike Huahana o nā Pipe Polypropylene (PP-R) no ka wai wela a me ke anuanu

Hoʻokumu ʻia nā paipu PP-R a me nā pono pono i ka polypropylene copolymerized random e like me nā mea maka nui a hana ʻia e like me GB / T18742. Hiki ke hoʻokaʻawale ʻia ka Polypropylene i PP-H (homopolymer polypropylene), PP-B (block copolymer polypropylene), a me PP-R (random copolymer polypropylene). Pālua ka pā o ka mīkini paipu kāwili ʻia i ka hana paipu. ʻO PP-R ka mea i koho ʻia no nā paipu polypropylene no ka wai wela a me ke anuanu ma muli o ke kūpaʻa lōʻihi i ke kaomi hydrostatic, ka lōʻihi kūpikipiki kūpikipiki kūpale a me ka hana a me ka hoʻoheheʻe.

He aha ka paipu PP-R?     

Kapa ʻia ka paipu PP-R he paipu polypropylene ʻekolu mau ʻano. Hāʻawi ia i ka polypropylene copolymer random e lawe ʻia i loko o ka paipu, a hoʻokomo ʻia i loko o ka paipu. He ʻano hou ia o ka huahana paipu ea i hoʻomohala ʻia a noi ʻia i ʻEulopa i nā makahiki 1990 mua. Ua ʻike ʻia ʻo PP-R i ka hopena o ka 80, e hoʻohana ana i ke kaʻina hana copolymerization phase gas e hana ma kahi o 5% PE i ke kaulahao molekole PP me ka polymerized maʻamau (random copolymerization) e lilo i hanauna hou o nā mea paipu. He hopena hopena maikaʻi ia a me nā hana kolo lōʻihi.
 
He aha nā ʻano o nā paipu PP-R? ʻO ka paipu PP-R nā ʻano nui aʻe:
1.nonona-ʻona a me ka hoʻomaʻemaʻe. ʻO ke kinikona a me nā hydrogen wale nō nā mole o PP-R. ʻAʻohe mea ʻino a ʻino hoʻi. Maʻemaʻe ʻole lākou. Hoʻohana ʻole ʻia lākou i nā paipu wai wela a anuanu hoʻi, akā hoʻohana pū ʻia i nā ʻōnaehana wai inu maʻemaʻe.  
2. mālama mālama wela a me ka mālama mālama ikehu. ʻO ka conductivity waiwela o ka paipu PP-R ʻo 0.21w / mk, ʻo ia wale nō ka 1/200 o kēlā paipu kila. 
3. ke kūpaʻa wela maikaʻi. ʻO ka pelu palupalu vicat o ka paipu PP-R ʻo 131.5 ° C. Hiki i ka mahana hana kiʻekiʻe ke piʻi i 95 ° C, hiki ke hoʻokō i nā koi o nā ʻōnaehana wai wela i ke kūkulu ʻana i ka wai a me nā kikoʻī hoʻokahe.
4. Ke ola lawelawe lōʻihi. ʻO ke ola hana o ka paipu PP-R hiki i nā 50 mau makahiki ma lalo o ka mahana hana o 70 ℃ a me ka hana hana (PN) 1.OMPa; ke ola o ka mahana maʻamau (20 ℃) ​​hiki ke piʻi ma mua o 100 mau makahiki. 
5.Easy mea hoʻonoho a me ka ike loea pilina. He hana kuʻihao maikaʻi ʻo PP-R. Hiki ke hoʻopili ʻia nā paipu a me nā pono e ka hoʻoheheʻe wela a me ka uila uila, maʻalahi e hoʻouka a hilinaʻi hoʻi i nā hono. ʻOi aku ka ikaika o nā ʻāpana i hoʻopili ʻia ma mua o ka ikaika o ka paipu ponoʻī. 
6.Material hiki ke hana hou. Hoʻomaʻemaʻe a haki a hana hou ʻia ka ʻōpala PP-R no ka hana paipu a me ka paipu. ʻAʻole i ʻoi aku ka nui o nā mea i hana hou ʻia ma mua o 10% o ka nui, ʻaʻole e hoʻopili i ka maikaʻi o ka huahana.

He aha ke kahua noi nui o nā paipu PP-R? 
1. ʻO nā ʻōnaehana anuanu a me ka wai wela o ka hale, me nā ʻōnaehana hoʻomehana waena;
2. ʻO ka ʻōnaehana hoʻomehana i loko o ka hale, me ka papahele, ka ʻaoʻao a me ka ʻōnaehana hoʻomehana wela. 
3. Pūnaewele lako wai kūpono no ka inu pololei ʻana;  
4.Central (kikowaena) ʻōnaehana air-conditioning;    
5. Nā ʻōnaehana pipeline uila no ka lawe ʻana a i ʻole ka hoʻokuʻu ʻana i ka pāpāho kemikala.


Ka manawa Post: Mei-19-2021