A na-eji tuber roba thermoplastic eme ihe n'ọtụtụ ebe n'ichepụta ụgbọ ala, akụrụngwa ahụike, nnyefe mmiri mmiri nke ụlọ ọrụ, na ngwa ụlọ n'ihi ngbanwe ya dị mma, nguzogide kemịkalụ, na ịdị mfe nhazi. Otú ọ dị, ọnọdụ ngwa dị iche iche nwere ihe dị iche iche chọrọ ịrụ ọrụ maka tubing rọba, na nhọrọ ihe na-emetụta ndụ ọrụ ya, nchekwa, na ọrụ ya. Edemede a na-enyocha nke ọma atụmatụ nhọrọ ihe maka tubing rọba thermoplastic site n'echiche nke ihe onwunwe, ihe ngwa chọrọ, na omume injinịa.
Ntụle njirimara nke ngwa rọba Thermoplastic Mainstream
Thermoplastic roba (TPR / TPE) bụ otu klas nke ihe polymer nke na-ejikọta elasticity nke roba na uru nhazi nke plastik. Ụdị ndị a na-ahụkarị gụnyere styrene{1}} dabere (dị ka SBS, SEBS), olefin{2}} dabere (dị ka TPV), polyurethane{3}} dabere (TPU), na polyester{4} dabere (TPEE).
1. Styrene{1} nke thermoplastic elastomers (SBS/SEBS) dabere
A na-eji SBS (styrene{0}butadiene-styrene block copolymer) mara ọnụ ahịa dị ala yana ezigbo mgbanwe, na-eme ka ọ dabara maka ọnọdụ okpomọkụ dị ala- (-40 degrees to 100 degrees). Otú ọ dị, nguzogide mmanụ ya na nnukwu nguzogide okpomọkụ adịghị ike, ma a na-ejikarị ya na ngwa ahịa ahịa kwa ụbọchị ma ọ bụ hoses maka ngwa ndị na-adịghị mkpa. SEBS (hydrogenated SBS), site na mgbanwe mgbanwe hydrogenation, na-eme ka iguzogide ịka nká na nguzogide okpomọkụ (ruo ogo 120), ma na-eguzogide ọgwụ ozone na ultraviolet radieshon, na-ejikarị ngwa n'èzí ma ọ bụ ọnọdụ na-achọ nkwụsi ike ogologo oge.
2. Thermoplastic polyolefins (TPV)
TPV (dị ka ngwakọta PP/EPDM) bụ ihe ngwakọta nke rọba na rọba na-agbanwe agbanwe, na-ejikọta ngbanwe nke rọba na nkwụsi ike nke rọba. Ọ na-ejigide ike n'ibu na okpomọkụ dị elu (ogo 130 ~ 150) ma nwee ezigbo mmanụ na ihe mgbaze. Ngwa a na-ahụkarị gụnyere ọkpọkọ ụgbọ ala yana nnyefe mmiri ọkụ dị elu-.
3. Thermoplastic Polyurethane (TPU)
A maara TPU maka ike ya dị elu, nguzogide abrasion na mmanu mmanu, nke nwere oke ike siri ike (60A ruo 80D), na-eme ka ọ dabara maka elu -nrụgide, elu{3} ebe abrasion (dị ka hydraulic hoses ma ọ bụ pneumatic sistemu). Agbanyeghị, TPU enweghị nguzogide hydrolysis na-adịghị mma ma nwee ike mebie ya site na iji ogologo oge na gburugburu iru mmiri, chọrọ mkpuchi mkpuchi ma ọ bụ mkpuchi.
4. Thermoplastic Polyester Elastomer (TPEE)
TPEE na-ejikọta isi ike nke polyester na mgbanwe nke polyether, na-egosipụta ọmarịcha ike ọgwụgwụ na nguzogide kemịkalụ, na-eme ka ọ dabara maka elu -mgbatị ugboro ugboro ma ọ bụ ọnọdụ ibu dị ike (dị ka robot hoses ma ọ bụ ngwa ngwa njikọ tubes). Ogologo nguzogide okpomọkụ ya na-abụkarị - ogo 40 ruo ogo 150 , mana ọnụ ahịa ya dị elu na-egbochi ngwa ya n'ubi dị ala.
Isi Ihe Ndị Injinia maka Nhọrọ Ihe
1. Environment na-arụ ọrụ na mgbasa ozi ndakọrịta
• Temperature Range: If the pipeline needs to be exposed to high temperatures (>120 degrees ) maka ogologo oge, TPV ma ọ bụ TPEE na-ahọrọ; maka gburugburu okpomọkụ - dị ala (<-30℃), SEBS or specially formulated TPU are recommended.
• Mgbasa ozi kemịkalụ: Mgbe ị na-akpọtụrụ mmanụ ma ọ bụ mmanụ ọkụ, TPV na TPU na-egosipụta nguzogide ọzịza dị mma karịa SEBS; maka ibufe mmiri mmiri acid/alkali siri ike, TPE ma ọ bụ PTFE{0}} gbanwetụrụ fluorinated kwesịrị ịhọrọ.
2. Mechanical Performance chọrọ
• Nguzogide nrụgide na ike mgbawa: Sistemu nrụgide dị elu- (dị ka ahịrị hydraulic) na-adabere na TPU ma ọ bụ TPV gbasiri ike (ya na eriri iko agbakwunyere ma ọ bụ nylon n'ígwé).
• Mgbanwe: Maka ngwa ndị metụtara ịgbagọ ugboro ugboro (dị ka catheters ahụike), TPEE siri ike ma ọ bụ SEBS dị ala kwesịrị ka ahọpụtara iji dozie mgbanwe na nguzogide anya mmiri.
3. Usoro iwu na asambodo chọrọ: Na ngalaba ahụike, achọrọ nnabata na ụkpụrụ FDA ma ọ bụ USP Class VI, yana -dị ọcha SEBS ma ọ bụ ahụike{2} ọkwa TPU ka akwadoro; tubing kọntaktị nri ga-ezute FDA 21 CFR 177.2600 (dịka ọmụmaatụ, TPR na-enweghị ihe egwu ọpụpụ); ụlọ ọrụ ụgbọ ala na-achọkarị ihe ka a kwado ya na ụkpụrụ LV 312 ma ọ bụ SAE J20.
Ndụmọdụ bara uru yana Ọdịnihu Ọdịnihu
Na nhọrọ ihe bara uru, a na-atụ aro ka ebuli mkpebi site na usoro ndị a:
1. Kọwaa paramita ngwa: Depụta ihe ngosi isi dị ka okpomọkụ, nrụgide, ụdị mgbasa ozi, na ndụ ọrụ;
2. Nnwale ihe onwunwe na nkwenye: Mezue ule ịka nká ngwa ngwa, ule imikpu kemịkalụ, na nleba anya ihe onwunwe na ihe ndị a na-eme ntuli aka;
3. Ọnụ -Ntụle uru: Tulee ọnụ ahịa ihe mbụ megide mmefu mmezi ogologo oge-. Dịka ọmụmaatụ, ebe TPU nwere ọnụ ahịa otu dị elu, ogologo ndụ ya na-eme ka ọ dabara maka ngwa agbakwunyere-uru dị elu-.
N'ọdịniihu, site na mmepe nke bio{0}} dabere na thermoplastic elastomer (dị ka polylactic acid{1}} dabere na TPR) na ihe nanocomposite, hoses rọba thermoplastic ga-enweta ọganiihu na ma ịdị mma gburugburu ebe obibi yana arụmọrụ. Ndị injinia kwesịrị ịdị na-enyocha ọganihu na sayensị akụrụngwa iji gboo mkpa ụlọ ọrụ na-esiwanye ike.
Nhọrọ ihe maka hoses rọba thermoplastic abụghị naanị nkwalite nke otu paramita, kama ọ bụ usoro injinịa sistemu zuru oke nke na-ejikọ akụrụngwa akụrụngwa, ọnọdụ arụ ọrụ na ihe nnabata chọrọ. Site na ihe ndị sayensị dabara na ihe achọrọ, ntụkwasị obi na akụ na ụba nke sistemu ọkpọkọ nwere ike imeziwanye nke ọma.
