Injiniyan Injiniya: Bambanci na Pa6

1. Bayanan:

PA POM, Polyamide ko yawanci ake kira nailan, an kera su ta hanyar egler a cikin sifofin kayan adon, sanda da bututu na ɗaya daga cikin robobi na injiniya. Yana da nau'ikan abu guda 2, PA6 da PA66, waɗanda sune abubuwan da suka fi na kowa. Tsarin guda biyu kwatankwacin abubuwa ne da yawa. Don haka menene banbanci tsakanin su biyun?

PA66 an samu nasarar sarrafa polymer ta pa66 polymer ta Wallace Hurme a 1935. Tsarin masana'antar masana'antu a cikin 1935 zuwa 1937, kuma aka tallata shi da Kasuwancin 1937.

PA6 shine Polymer polymer da aka sanya ta ta hanyar Jamusanci Ig ya amfani da Comrolactam a matsayin albarkatun kasa ε-aminocaproic acid. An aiwatar da samar da gwajin na Fa6 a cikin 1939, Fan Fan Fanhen a 1943.

2. Tsarin: tsari:

Yin nazarin bambanci tsakanin su, dole ne mu fara da tsarinsu. Kamar yadda duk mun sani, PA6 an kafa shi ta hanyar zobe-buɗe polymerization na Caprolactam, da kuma + Pa66 an samu ta hanyar ɗaukar hoto na Hexamethylediamine tare da adipic acid. Pa6 da Pa66 suna da tsari iri ɗaya, amma tsarin tsari ya bambanta, kamar yadda aka nuna a cikin wannan adadi:

Daidai ne saboda wannan bambanci cewa yanayin banbanci, kamar ƙarfin haɗin hydrogen mai ban sha'awa ya bambanta.

3. Aiki

Matsayin Meling na Pa66 shine 260 ~ 260 ° C, da zazzabin canjin gilashin (yanayin bushe na gilashi (yanayin bushewa) shine 50 ° C. Yawansu shine 1.13 ~ 1.16 g / cm3.

Pa6 translucent ko opaque Milky Crystalline barbashi, m costpe sau 130 ° C, 24 ° C ruwa, 24 ° C ruwa na 240 ° C, da yawan ruwa na 24%) 1.8%, tare da kyakkyawan sa sahihancin Yana da babban ƙarfin injin, kyakkyawan yanayin zafi da kuma shingen zazzabi, kyakkyawan ƙarancin ƙarancin aiki da juriya na sinadarai, musamman kyakkyawan mai.

Idan aka kwatanta da Pa66, PA6 yana da sauƙin aiwatarwa da tsari, yana da kyakkyawan mai sheki a saman samfurin, kuma yana da kewayon zafin jiki mai yawa. Yana da ƙarancin m, melting aya, amfani da dogon lokaci a cikin m yanayin, da isasshen damuwa a cikin kewayon zazzabi mai yawa. A ci gaba da amfani da zafin jiki shine 105 ° C.

Gabaɗaya, bambance-bambance na wasan tsakanin Pa66 da Pa6 Pa6 sune kamar haka:

Kayan aikin injin: PA66> PA6

Zafi matsakaici aiki: PA66> PA6

Farashi: PA66> PA6

Maɗaukaki: Pa66> Pa6

Shayarwa sha: Pa66 <Pa6

Yanayin Desistance: Pa66 <Pa6

Lokacin Indientsation: PA66 <Pa6

Molding yi: Pa66 <Pa6

4.The tsari yanayin

Jiyya na bushewa

PAVEL- Yana kwashe danshi danshi, ya kamata a biya musamman kulawa ta hanyar bushewa kafin aiki. Idan ana wadatar kayan a cikin kayan mai hana ruwa, ya kamata a rufe littafin. Idan zafi ya fi zuwa 0.2%, ana bada shawarar bushewa cikin iska mai zafi mai bushe a sama da 80 ° C na tsawon awanni 3-4. Idan an fallasa kayan ga iska fiye da 8 hours, ana bada shawarar bushewa da 10 zuwa 2 hours. Zai fi kyau a yi amfani da busasshen bushewa.

PA66 Idan an rufe kayan kafin aiki, to, babu buƙatar bushewa. Idan an buɗe akwati na ajiya, ana ba da shawarar bushe a cikin zafi, busasshen iska a 85 ° C. Idan zafi ya fi 0.2%, kuma wajibi ne don aiwatar da bushewa mara nauyi a 105 ° C na 1 zuwa 2 hours. Zai fi kyau a yi amfani da busasshen bushewa. Moling zazzabi: 260 ~ 310 ° C, 280 ~ 320 ° C don inganta nau'in.

Zazzabi na mold

PA6: 80 ~ 90 ° C. Zaɓin zafin jiki mai mahimmanci yana shafar lu'ulu'u, wanda bi da bi yana shafar kaddarorin kayan aikin.

Don baƙin ciki-walled, sassan da ya fi tsayi, ana bada shawarar yin amfani da yanayin zafi mai girma. Theara yawan zafin jiki na ƙiyayya yana ƙara ƙarfi da taurin ɓangaren ɓangaren, amma yana rage tauri. Idan kauri bangon ya fi 3mm, ana bada shawara don amfani da ƙarancin zafin jiki na 20 ~ 40 ° C. Don Gilashin ƙarfafa haɓaka zafin jiki ya zama mafi girma daga 80 ° C.

PA66: 80 ° C aka ba da shawarar. Zazzabi da ƙuruciya zai shafi lu'ulu'u, wanda zai shafi kayan jiki na samfurin.

Don sassan filastik na bakin ciki, idan yawan zafin jiki na bakin ciki ƙasa da 40 ° C ana amfani dashi, da crystall da ake buƙata Dancanci na filastik zai canza da lokaci, kuma don kula da lafiyar geometric na filastik.

Narke zazzabi

PA6: 230 ~ 280 ° C, 250 ° 280 ° C don inganta nau'in.

PA66: 260 ~ 290 ° C. Samfurin don ƙararren gilashin shine 275 ~ 280 ° C. Ya kamata a guji zafin jiki na narke sama da 300 ° C.

Shirya

Dukansu suna gaba ɗaya tsakanin 750 da 1250 mashaya (dangane da kayan da tsarin samfuri).

Saurin alluna

Dukansu suna da saurin gudu (dan kadan kadan don kayan karfafa).

Rush da Gateo

Tun lokacin saita Pa6 da Pa66 gajere ne, matsayin ƙofar yana da matukar muhimmanci. Apertarewa ƙofar bai zama ƙasa da 0.5 * t (inda t shine kauri daga ɓangaren filastik). Idan ana amfani da mai tsere mai zafi, girman ƙofofin ya kamata ya zama ƙasa da mai tsere na al'ada saboda mai tsere zai iya taimakawa hana ƙaddamar da kayan. Idan ana amfani da ƙofar ƙofa mai zurfi, mafi ƙarancin diamita na ƙofar ya kamata 0.75 mm.

5. Aikace-aikace

Jirgin ruwan injiniyan Pa6 suna da karfin tension, juriya mai tasiri, kyakkyawan sa juriya da sinadarai da ƙarancin tashin hankali. Za'a iya gyara su ta hanyar Fiber gilashi, canjin ma'adinai da harshen wuta. Yana sa ya zama cikakken cikakken, galibi ana amfani da shi a masana'antar kera motoci da kayan aikin lantarki.

PA66 yana da cikakkiyar aiki mai kyau, babban ƙarfi, mai kyau matsakaici, mai, mai tsauri, sanya juriya da kuma sa-kai, da taurin kai, juriya, ƙarfin hali da aikin creep da aikin creep. PA66 an fi amfani dashi don samar da yarns masana'antu kamar igiyoyi saboda ƙarfi mafi girma fiye da Pa6.

PA6 da PA66 sun mamaye aikace-aikace da yawa, amma a ina za a iya amfani da PA6, Pa66 ba a amfani da PA66.

Ahd filastik

Bayani na Janar na PA6:

Sheet: 1 --- 100 x 1000 x 2000m (silsies na al'ada za'a iya bayarwa)

Launuka: farin, baki, shuɗi, ana iya ba da umarnin.

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