[Nkọwa zuru ezu] Polyethylene bụ rọba, mara maka oke njupụta ya, mgbanwe na nkwụsi ike kemịkal. Ọ dị mma maka nrụgide na ngwa ọkpọkọ na-enweghị nrụgide. A na-emekarị pipụ HDPE nke polyethylene 100 resin, na njupụta nke 930-970 kg / m3, nke dị ihe dị ka okpukpu 7 nke ígwè.

Polyethylene bụ plastik, mara maka oke njupụta ya, mgbanwe na nkwụsi ike kemịkalụ. Ọ dị mma maka nrụgide na ngwa ọkpọkọ na-enweghị nrụgide. A na-emekarị pipụ HDPE nke polyethylene 100 resin, na njupụta nke 930-970 kg / m3, nke dị ihe dị ka okpukpu 7 nke ígwè. Ọkụ ọkụ dị mfe ibufe na ịwụnye. Polyethylene adịghị emetụta usoro mmebi nke electrochemical, ọ na-adịkarịkwa ka ọkpọkọ na-ekpuchi nnu, acid na alkali. A gaghị emebi arịa dị mma nke tube polyethylene, esemokwu ahụ dịkwa ala, ya mere tube plastik adịghị emetụta ngwa ngwa site na uto nke microorganisms. Ikike iguzogide mmebi corrosion na mmiri na-aga mgbe niile na-eme ka ihe ndozi nke ọkpọkọ HDPe dị ala. Enwere ike iji resin gbasiri ike mee ọkpọkọ polyethylene, nkewa ya dị ka PE100-RC, ma gbakwunye ya iji belata uto mgbawa. Ọkpụkpọ ndị a na-emepụta nwere ike ịdị ogologo ndụ, na polyethylene nwere uru akụ na ụba na usoro ndụ nke ọrụ ahụ.

Ugbu a ekpebiela ịdịte aka nke ọkpọkọ HDPe, akụ na ụba dị oke mkpa mgbe ejiri ọkpọkọ polyethylene na ngwa akụrụngwa nchekwa mmiri. E jiri ya tụnyere ọkpọkọ ígwè ductile, uru kacha pụta ìhè nke ọkpọkọ polyethylene bụ na ha nwere ike igbochi nkwụsị. Enwere ụdị ntapu ọkpọkọ abụọ: mgbakwụnye nkwonkwo, mgbawa mgbawa na ntapu perforation, nke dị mfe ijikwa.

The size nkeHDPE ọkpọkọdị n'etiti 1600 mm na 3260 mm, na nnukwu ọkpọkọ ugbu a na ahịa nwere ike iji. Na mgbakwunye na usoro inye mmiri nke ime obodo, a pụkwara iji paịpụ rọba buru ibu nke e ji polyethylene mee ihe n'ebe a na-asachapụ mmiri mmiri na ebe a na-edozi mmiri na-ekpofu mmiri. Nnukwu ọkpọkọ nwere ike ịbụ site na 315 cm ruo 1200 cm. The nnukwu dayametaHDPe ọkpọkọdị nnọọ inogide na a pụrụ ịdabere na ya. Mgbe e liri ya n'ime ala, ọ nwere ike ịgba ọsọ ruo ọtụtụ iri afọ ma na-achọ obere nlekọta, ya mere ọ dị nnọọ mma maka ngwa ọgwụgwọ mmiri. Ịdị ogologo nke ọkpọkọ polyethylene na-abawanye ka ogo ya na-abawanye, na-egosi arụmọrụ mgbochi na-enweghị atụ. Were ala ọma jijiji nke Kobe na 1995 na Japan dị ka ihe atụ, ihe owuwu obodo; pipeline ndị ọzọ niile na-ada opekata mpe otu ugboro kwa kilomita atọ, na usoro pipeline HDPE niile enweghị ọdịda efu.

Uru nke ọkpọkọ HDPE: 1. Nkwụsi ike kemịkalụ dị mma: HDPE enweghị polarity, nkwụsi ike kemịkalụ dị mma, anaghị amụ algae na nje bacteria, ọ dịghị ọnụ ọgụgụ, yana ngwaahịa na-emetụta gburugburu ebe obibi. 2. Ike njikọ dị mma: jiri oghere eletriki oghere ma ọ bụ nkwonkwo thermal fusion, na nkwonkwo ole na ole na enweghị nkwụsị. 3. Ala mmiri na-eguzogide mmiri: Ime elu nkeHDPe ọkpọkọbụ ire ụtọ, na ala wear eguzogide ọnụọgụ na nnukwu eruba. 4. Nguzogide dị mma na obere okpomọkụ na brittleness: okpomọkụ na-egbuke egbuke bụ (-40), na ihe nchebe pụrụ iche adịghị mkpa maka ụlọ okpomọkụ dị ala. 5. Ngwọta abrasion dị mma: Nnwale ntụle nke nguzogide abrasion nke ọkpọkọ polyethylene na ọkpọkọ ígwè na-egosi na nkwụsị nke ọkpụkpụ polyethylene dị okpukpu 4 karịa nke ígwè ígwè. 6. Mgbochi ịka nká na ogologo ndụ ọrụ: Enwere ike ịchekwa ọkpọkọ HDPE ma ọ bụ jiri ya mee ihe n'èzí ruo afọ 50 na-enweghị mmebi site na radieshon ultraviolet.