Ua ʻoki ʻia kahi laʻana ma kahi o 100 mm ka lōʻihi mai kahi kūlana o ka paipu ahi i uhi ʻia i ka plastic, a ua hana ʻia ka hoʻāʻo hopena e like me nā ʻōlelo ma ka Papa 2 i ka mahana o (20±5) ℃ e nānā i ka pōʻino o ka. ka uhi o loko.I ka wā o ka hoʻāʻo ʻana, aia ka weld ma ka ʻaoʻao ʻē aʻe o ka ʻili o ka hopena, a e hoʻokō ka hopena hōʻike i nā ʻōlelo o 5.9.
Nā kūlana hoʻokolohua hopena
Anawaena inoa DN
Mm kaumaha hāmare, kg hāʻule kiʻekiʻe, mm
15-251.0300
32 ~ 502.1500
65
80 ~ 3006.31000
Hoʻomāmā
ʻO ka lōʻihi o ka hoʻohālike ʻāpana paipu (500±50) mm.E hoʻohana i nā ana kūpono e ālai i ka puka komo a me ka puka o ka paipu, a e hoʻonui mālie i ke kaomi maikaʻi ʻole mai ka puka komo a 660 mm hg, mālama ʻia no 1 min.Ma hope o ka hoʻāʻo ʻana, e nānā i ka uhi o loko, a pono nā hopena hōʻike e hoʻokō me nā ʻōlelo o 5.10.
Hōʻike wela kiʻekiʻe
ʻO ka lōʻihi o ka ʻāpana ʻāpana paipu (100±10) mm.Hoʻokomo ʻia ka mea hoʻohālike i loko o ka incubator a hoʻomehana ʻia i (300±5) ℃ no 1 hola.A laila wehe ʻia a hoʻoluʻu maoli i ka mahana maʻamau.Ma hope o ka hoʻāʻo ʻana, e lawe i ka mea hoʻohālike a nānā i ka uhi o loko (ʻae ʻia ke ʻano ʻeleʻele a ʻeleʻele hoʻi), a pono nā hopena hōʻike e hoʻokō me 5.11.
Ka ho'āʻo pōʻaiapili paʻi
ʻO ka lōʻihi o ka ʻāpana paipu (500±50) mm.Ua hoʻohana ʻia nā ana kūpono e ālai i ka puka komo a me ka puka o ka paipu, a ua hoʻopili ʻia ka paipu me ka ʻōnaehana wai.Ua hoʻopiha ʻia ka wai e wehe i ka ea, a laila 3000 alternating hydrostatic hoʻāʻo mai (0.4±0.1) MPa i MPa i lawe ʻia, a ʻo ka manawa o kēlā me kēia hoʻokolohua ʻaʻole i ʻoi aku ma mua o 2 s.Ma hope o ka hoʻāʻo ʻana, e nānā ʻia ka uhi o loko a e hoʻokō ʻia ka hoʻāʻo adhesion e like me nā ʻōlelo o 6.4, a e kūlike nā hopena hōʻike i nā ʻōlelo o 5.13.
Ho'āʻo pōʻaiapuni wela
ʻO ka lōʻihi o ka ʻāpana paipu (500±50) mm.Hoʻonoho ʻia nā mea hoʻohālike no 24 mau hola i kēlā me kēia mahana ma ke ʻano penei:
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃;
(50±2) ℃;
(-10±2) ℃.
Ma hope o ka hoʻāʻo ʻana, hoʻokomo ʻia ka specimen i kahi kaiapuni me kahi mahana o (20±5) ℃ no 24 mau hola.Ua nānā ʻia ka uhi o loko a ua hoʻokō ʻia ka hoʻāʻo adhesion e like me nā ʻōlelo o 6.4.Pono nā hopena ho'āʻo e kū i nā ʻōlelo o 5.14.
ʻO ka hoʻāʻo ʻelemakule wai mehana
ʻO ka nui a me ka lōʻihi o ka hōʻailona ʻāpana paipu ma kahi o 100 mm.Pono e mālama ʻia nā ʻāpana i hōʻike ʻia ma nā kihi ʻelua o ka ʻāpana paipu me ka anticorrosion.Pono e hoʻonā ʻia ka ʻāpana paipu i loko o ka wai maʻemaʻe ma (70±2) ℃ no 30 mau lā.
Nā hiʻohiʻona hoʻolaha hoʻoponopono
(1) Nā waiwai mechanical kiʻekiʻe.Loaʻa i ka epoxy resin ka hoʻohui ikaika a me ka hoʻolālā molekala paʻa, no laila ʻoi aku ka kiʻekiʻe o kāna mau mea mechanical ma mua o ka resin phenolic a me ka polyester unsaturated a me nā resins thermosetting honua ʻē aʻe.
(2) ʻO ka hoʻopili ʻana i ka paipu ahi me ka hoʻohana ʻana i ka resin epoxy, me ka hoʻopili ikaika.ʻO ka ʻōnaehana hoʻōla o ka resin epoxy he pūʻulu epoxide ikaika loa, hui hydroxyl, ether bond, amine bond, ester bond a me nā hui polar ʻē aʻe, e hāʻawi ana i ka epoxy cured material me ka hoʻopili maikaʻi ʻana i ka metala, keramika, aniani, kekona, lāʻau a me nā mea ʻē aʻe. .
(3) liʻiliʻi ka nui o ka hōʻemi ʻana.ʻO ka maʻamau 1% ~ 2%.ʻO ia kekahi o nā ʻano me ka liʻiliʻi liʻiliʻi curing shrinkage i ka thermosetting resin (phenolic resin he 8% ~ 10%; Unsaturated polyester resin he 4% ~ 6%; Silicone resin 4% ~ 8%).He liʻiliʻi loa ka coefficient hoʻonui laina, maʻamau 6×10-5/℃.No laila, loli iki ka leo ma hope o ka ho'ōla.
(4) ʻenehana maikaʻi.ʻO ka hoʻōla ʻana i ka resin epoxy ʻaʻole ia e hoʻohua i nā volatiles haʻahaʻa haʻahaʻa, no laila hiki ke hoʻoheheʻe haʻahaʻa a i ʻole ka hoʻopili kaomi ʻana.Hiki iā ia ke hui pū me nā ʻano lāʻau lapaʻau āpau e hana i ka solvent-free, paʻa kiʻekiʻe, ka uhi ʻana i ka pauka a me ka uhi ʻana i ka wai a me nā uhi ʻoluʻolu ʻē aʻe.
(5) Hoʻopili uila maikaʻi loa.ʻO ka resin epoxy kahi resin thermosetting me nā waiwai antistatic maikaʻi.
(6) Paʻa maikaʻi, kūpaʻa maikaʻi loa i nā kemika.ʻO ka resin epoxy me ka ʻole o ka alkali, ka paʻakai a me nā mea haumia ʻē aʻe ʻaʻole maʻalahi e hōʻino.I ka lōʻihi o ka mālama pono ʻana (i hoʻopaʻa ʻia, ʻaʻole i hoʻopilikia ʻia e ka makū, ʻaʻole i ka wela kiʻekiʻe), ʻo 1 makahiki kona manawa mālama.Hiki ke hoʻohana ʻia inā kūpono ia ma hope o ka pau ʻana.ʻO nā mea i hoʻōla ʻia epoxy he paʻa kemika maikaʻi loa.ʻOi aku ka maikaʻi o kona pale ʻana i ka alkali, ka waikawa, ka paʻakai a me nā mea ʻē aʻe ma mua o ka resin polyester unsaturated, resin phenolic a me nā resin thermosetting ʻē aʻe.No laila, hoʻohana nui ʻia ka epoxy resin e like me ka anticorrosive primer, a no ka mea ʻo ka epoxy resin curing material he ʻekolu-dimensional network structure, a hiki ke kū i ka impregnation o ka aila, etc., ka nui o nā noi i loko o ka pahu aila, tanker aila, mokulele, ka ka paia o loko o ka pahu holoʻokoʻa.
(7) ʻO ka epoxy curing heat resistance ka maʻamau 80 ~ 100 ℃.Hiki i nā ʻano ʻano wela wela epoxy resin ke hiki i 200 ℃ a i ʻole.
Nā mea maikaʻi o ka huahana
(1) Coated plastic steel paipu i kiʻekiʻe mechanical ikaika, kūpono no ka paʻakikī hoʻohana kaiapuni;
(2) Hiki i ka uhi o loko a me waho ke pale i ka oxidation metala a maikaʻi ke kūpaʻa kino kino;
(3) ka hoʻopili ʻana i ka adhesion ikaika, ka ikaika hoʻopaʻa kiʻekiʻe a me ke kūpaʻa hopena maikaʻi;
(4) Haʻahaʻa roughness coefficient a me friction coefficient, maikaʻi ke kū'ē i ka haole kino adhesion;
(5) ʻO ka paipu kila i uhi ʻia he anti-kahiko a he lōʻihi kona ola lawelawe, ʻoi aku ka kūpono no ka hāʻawi ʻana i ka wai ma lalo o ka honua.
Ka manawa hoʻouna: Mei-23-2022