PE ọkpọkọdị ugbu a na ahịa, ma bụrụlarị ngwaahịa a maara nke ọma, karịsịa ndị nọ na ụlọ ọrụ ahụ.Mgbe a na-akpọ ọkpọkọ PE, ha na-eche ozugbo banyere iyi mgbochi, nrụgide nrụgide, nkwụsị corrosion na ogologo ndụ ọrụ.Enwere ọtụtụ ọkpọkọ PE.Ụdị, akụrụngwa PE na-ekewa n'ime ọtụtụ ụdị, a na-ekewakwa ngwaahịa PE ọkpọkọ n'ime ọtụtụ ụdị, nkọwa zuru ezu nke taa, gịnị bụ ọdịiche dị n'etiti ụkpụrụ nke ọkpọkọ PE80 na ọkpọkọ PE100?
Ihe PE bụ polyethylene, nke bụ ihe dị iche iche nke plastik.Ọ bụ ihe eji eme ihe na-emepụta ihe site na polyethylene.
N'ụzọ bụ isi kewara ụzọ abụọ: obere njupụta polyethylene LDPE (ike dị ala);nnukwu njupụta polyethylene HDPE.A na-ekewa ihe PE gaa n'ọkwa ise dị ka ọkọlọtọ mba dị n'otu si dị: PE32 grade, PE40 grade, PE63 grade, PE80 grade and PE100 grade.
Mmepụta nke ọkpọkọ PE maka ọkpọkọ mmiri dị elu bụ polyethylene dị elu (HDPE), akara ule ya bụ PE80 na PE100 (dị ka mkpirisi nke ike kacha nta achọrọ, MRS).MRS nke PE80 ruru 8MPa;MRS nke PE100 ruru 10MPa.MRS na-ezo aka na mgbakasị mgbakasị ike nke ọkpọkọ (uru agbakọ anwale dịka ụkpụrụ mba ụwa siri dị).
PE80 (8.00 ~ 9.99Mpa) bụ masterbatch nwere antimony trioxide ọdịnaya nke 80% na polyethylene mkpụrụ, nke enwere ike iji ya na nkedo na ịme ihe nkiri n'otu oge.Ọ bụ nnukwu uzuzu na-enweghị uzuzu na-enweghị ihe ọ bụla nke dị nchebe na mmepụta karịa ntụ ntụ omenala, dị mfe ịmụta usoro onunu ogwu, a na-ewerekwa ya dị ka ihe n'ozuzu nzube masterbatch, nke na-enweghị n'ụdị granular.
PE100 (10.00 ~ 11.19Mpa) bụ ọnụọgụ nke akara ule enwetara site na ịgbakọ ike kacha nta achọrọ (MRS) nke akụrụngwa polyethylene.Dị ka GB / T18252, na hydrostatic ike nke ihe kwekọrọ 20 ℃, 50 afọ na amụma puru omume nke 97.5% kpebisiri ike dị ka GB / T18252.σLPL, tụgharịa MRS, wee mụbaa MRS site na 10 iji nweta ọnụọgụ nhazi ọkwa nke ihe ahụ.
Ọ bụrụ na a ga-ejikọta ọkpọkọ na ihe ndị a na-emepụta site na ọkwa dị iche iche nke ihe ndị dị na polyethylene, a ga-edozi nkwonkwo ahụ na ule hydraulic.N'ozuzu, PE63, PE80, PE100 ngwakọta na agbaze agbaze ọnụego (MFR) (190 ° C / 5kg) n'etiti 0.2g / 10min na 1.3g / 10min kwesịrị ka a na-ejikọta ọnụ na ike jikọọ na ibe.Ọ dị mkpa ka a nwalee ihe ọkụkụ na-abụghị oke a iji chọpụta.
1. Gịnị bụ PE100 polyethylene pipe?
A na-amata mmepe nke ihe ọkpọkọ polyethylene dị ka ekewara n'ọgbọ atọ, ya bụ usoro mmepe atọ:
Ọgbọ nke mbụ, obere njupụta polyethylene na "ụdị otu" polyethylene dị elu, na-arụ ọrụ na-adịghị mma ma na-adaba na ihe ndị dị ugbu a na polyethylene dị n'okpuru PE63.
Ọgbọ nke abụọ, nke pụtara na 1960, bụ ihe na-eme ka ọkpụkpụ polyethylene ọkpọkọ na-enwe ike ogologo oge hydrostatic na nkwụsị mgbape, nke a na-akpọ ugbu a PE80 ọkwa polyethylene pipe.
Ọgbọ nke atọ, nke pụtara na 1980, a na-akpọ ọgbọ nke atọ polyethylene ọkpọkọ pụrụ iche PE100.PE100 pụtara na na 20 Celsius C, polyethylene ọkpọkọ ka nwere ike ịnọgide na-enwe ike kacha nta achọrọ MRS nke 10MPa mgbe afọ 50 gachara, ma nwee ezigbo nguzogide na uto ngwa ngwa.
2. Gịnị bụ isi uru nke PE100 polyethylene pipe?
PE100 nwere ihe niile mara mma nke polyethylene, na akụrụngwa ya na-emeziwanye nke ọma, nke na-eme ka PE100 nwee ọtụtụ uru pụrụ iche ma jiri ya na mpaghara ndị ọzọ.
2.1 Nguzogide nrụgide siri ike
N'ihi na PE100 resin nwere opekempe achọrọ ike nke 10MPa, ọ dị ike karịa polyethylene ndị ọzọ, na gas na mmiri mmiri nwere ike ibuga n'okpuru nnukwu nrụgide;
2.2 Mgbidi dị mkpa
N'okpuru nrụgide arụ ọrụ nkịtị, mgbidi ọkpọkọ nke ihe PE100 mere nwere ike ịbelata nke ukwuu.Maka ọkpọkọ mmiri buru ibu, iji ọkpọkọ ndị dị mkpa nwere ike ịzọpụta ihe ma gbasaa ebe a na-agafe agafe nke ọkpọkọ, si otú ahụ na-abawanye ikike njem nke ọkpọkọ.Ọ bụrụ na ikike mbufe na-adịgide adịgide, mmụba nke akụkụ obe na-eduga n'ịbelata ọnụ ọgụgụ mmiri na-asọ asọ, nke mere na nnyefe nwere ike mezuo site na obere mgbapụta ọkụ, ma a na-echekwa ọnụ ahịa ya.
2.3 Ihe nchekwa dị elu
Ọ bụrụ na ọkpọkọ dị nha ma ọ bụ akọwapụta nrụgide arụ ọrụ, ihe nchekwa nke PE100 nwere ike hụ na a ga-ekwe nkwa na usoro pipụ polyethylene dị iche iche taa.
2.4 Ike siri ike
Ihe PE100 nwere modulus nke 1250MPa, nke dị elu karịa 950MPa nke resin HDPE ọkọlọtọ, nke na-eme ka ọkpọkọ PE100 nwee mgbanaka mgbanaka dị elu.
3. Mechanical Njirimara nke PE100 resin
3.1 Ike na-adịgide adịgide
Ekpebiri ike na-adịgide adịgide site na nrụgide ịnwale ahịrị ahụ na okpomọkụ dị iche iche (20°C, 40°C, 60°C na 80°C).Na 20 ℃, PE100 resin nwere ike ịnọgide na-enwe ike nke 10MPa mgbe afọ 50, (PE80 bụ 8.0MPa).
3.2 Ezi nrụgide mgbawa mgbochi
PE100 polyethylene ọkpọkọ pụrụ iche ihe nwere ezi iguzogide nrụgide cracking, na-egbu oge omume nke nrụgide cracking (> 10000 awa), na ọ pụrụ ọbụna na-egbu oge n'ihi na ihe karịrị 100 afọ n'okpuru ọnọdụ nke 20 ℃.
3.3 Nguzogide dị ịrịba ama maka uto mgbape ngwa ngwa
Ihe achọrọ maka ikike iguzogide uto ngwa ngwa nke mgbawa na-egbochi iji ọkpọkọ polyethylene omenala: maka gas, njedebe nrụgide bụ 0.4MPa, na maka nnyefe mmiri, ọ bụ 1.0MPa.N'ihi ikike dị ịrịba ama nke PE100 na-eguzogide ngwa ngwa nke mgbagwoju anya, njedebe nrụgide na netwọk ikuku gas na-abawanye ruo 1.0MPa (1.2MPa ejirila na Russia na 1.6MPa na netwọk mgbasa ozi mmiri).Na okwu, ngwa nke PE100 polyethylene ihe na pipeline ga-ahụ na arụmọrụ paramita nke pe100 mmiri na-enye ọkpọkọ na ọkpọkọ netwọk dị mma, ọzọ akụ na ụba na-enwe ogologo ọrụ ndụ.
Ntuziaka: http://www.chinapipe.net/baike/knowledge/15022.html
Oge nzipu: Nov-04-2022