Rufi - musamman shafi cewa taimaka wajen kare 'yan adam daga lalace igiyoyi, bututu, da kuma wasu abubuwa, ba tare da wanda rayuwa da kuma da ta'aziyya ne kawai zai yiwu ba su yi tunanin. Kafin ka samu shiga cikin gidan kowa da kowa, da ruwa, da zafi, ko da wutar lantarki ga tafiya mai nisa, da kuma sadarwa a sau da yawa dake karkashin kasa, inda su ne, ban da nauyi sanya a saman, barnatar rinjayi danshi. Saboda haka, kadaici - shi ne da farko mai tsaron gida, kuma da ƙarfi ya dogara da karko na dukan tsarin.
Cable daina kai hare hare, kuma da jinsin
A matsanancin cover wani USB yana da dama yadudduka, wanda suke iya samar da matsakaicin kariya. Wannan na iya zama na musamman masana'anta, PVC, roba, karfe da kuma gami daga gare ta. A na USB rufi a kan wanda aka ruwaito da sakonni na iya hada wani allo da aka yi da karfe raga, tsare, polymer film wanda surface za a iya rufi da karfe gami. Polyvinyl chloride ne yadu amfani, wanda aka yi amfani a matsayin mai taushi rufi. Ya qunshi a cikin abun da ke ciki na 50% na roba abubuwa, saboda abin da kona kayan damar rage-rage. Wannan abu ya rufe ikon igiyoyi high ƙarfin lantarki, kazalika da makamai. Takarda insulator amfani a yi na ikon USB da kuma aka kerarre daga unbleached sulphate ɓangaren litattafan almara. Polyethylene kuma an yi amfani da matsayin shugaba rufi a kan wanda za a kawota tare da daban-daban sigogi har zuwa biyar da ɗari kilovolts. Wasu hanya ya kumshe wadansu abubuwan USB yana da kyau kwarai inji Properties da kuma kariya da na yanzu. Abu ne m, abin dogara a aiki, kuma a kan thermal kwanciyar hankali ya fi dukan sauran insulators.
Metal-insulator
A mafi wani zaɓi don ƙirƙirar wani hatimi da kuma juriya ga danshi yana dauke karfe, mafi m da zafi-resistant zaci gubar da aluminum, suna yadu amfani a matsayin shugaba rufi. A kauri daga cikin harsashi ya dogara da diamita na USB, kazalika da yanayin karkashin abin da za a yi amfani da. A yi gubar rufi ne amfani iri gubar-3, inda m karfe na akalla 95,95%. Da narkewa batu na 327,4 digiri Celsius, amma tare da dukan amfanin da na inji karfin da wannan abu ne low, da kuma flowability ne ta ƙara, amma shi ne mai tsanani drawback for tsaye na USB shigarwa hada da kawai wannan ambulan. Chemical aiki daga cikin abu ne low, wanda aka supplemented da wani babban jure lalata. A kayan yana da wani low jure vibrations, musamman cikin sharuddan zazzabi Yunƙurin. Don inganta zaman lafiya, a cikin yi na antimony dopant aka kara. Aluminum da ake amfani da yin da na USB daga A-5, gami tsarki ne 99,97%. karfe yawa ne 2700 kilo da cubic mita da kuma tensile ƙarfin - 39,3-49,1 MPa. Irin wannan harsashi ne 2-2.5 sau karfi da kuma sau 4 wuta fiye da gubar. Shi ne resistant zuwa vibration, kuma ma yana da tsare Properties. Amma nan don galvanic lalata shi ne m, da kuma na USB samar da fasaha ne mafi aiki-m.
Ba wai kawai harsashi
Bugu da kari ga harsashi, da rufi - shi ne ma wani matashin kai, makamai da kuma m cover, wanda kare da lalacewar idan shi ba shi da, da alama qunshi wata wasika "T". A kushin da aka yi da wani abu da kuma fibrous bitumen, shi ne located a kan harsashi. Akwai ake Littafi version matashi hada da wani Tuddan na biyu roba tube, saboda shi samar da ƙarin kariya daga lalata da kau- halin yanzu. Wannan na USB ƙunshi alama da harafin "L", biyu yadudduka na tef aka kaddamarda "2A". Idan amfani a cikin Tuddan polyethylene nadi zai dauke da wani "P", kuma idan PVC - "B". Idan na USB ba shi da wani matashin kai, shi ne alama "B". A kauri daga cikin matashi jeri daga 1.5 zuwa 3.4 millimeters.
Armor kare na USB daga inji lalacewa, za a iya yin biyu karfe tube kauri daga 0.3 zuwa 0.8 millimeters, amma irin makamai amfani a yi na kayayyakin da za a fuskanci tashin hankali. Idan tashin hankali ne ba, da na USB kare karfe galvanized lebur ko zagaye waya. A kauri daga shafi lebur waya ne daga 1.5 zuwa 1.7 millimeters, kuma madauwari - daga 4 zuwa 6 millimeters. Waje iya zama wadanda ba flammable abun da ke ciki wanda aka sanya a matsayin "N", extruded roba m tiyo ne labeled - "rn", da kuma PVC tiyo kira "IIIB", yana farawa daga m kauri daga 1.9 zuwa 3 millimeters.
shambura
Ba kasa da muhimmanci shi ne a kan daidai da na USB da kuma bututu rufi, wanda yana taimaka musu wani tsawon lokaci domin su aiwatar da ayyuka. Amfani da thermal rufi, wanda aka nufi ga kariya daga daskarewa ko zafi manyan aminci. Rufi - wannan shi ne wata dama ba kawai don ci gaba da dumi da kuma hana hatsari a cikin hali na daskarewa, amma kuma ajiye kudi. Selection insulators babbar, a matsayin kayan daga wanda an yi su, duk ya dogara da manufa tube.
irin insulators
Ma'adinai ulu - duniya insulator wanda damar kare daga sanyi, ci gaba da dumi da kuma yana da sauti deadening Properties. A kayan bai ƙone ba, kuma da ake amfani da ta yi basalt. Ulu saman tsare iya mai rufi ko galvanized. Har ila yau, amfani da polyethylene ko foamed polyethylene, shi yana cikin wani nau'i na tube ko takardar. The abu ne sosai resistant ga laima da kuma riƙe zafi, wannan ya kai ga ta tartsatsi shahararsa. A bututu sashe yana da wani fasaha da kuma daidai diamita.
Me kuma za a iya samun karkasuwa ne?
Yana kuma iya a yi amfani da roba kumfa roba, wanda zai iya zama a cikin nau'i na biyu da shambura da faranti. A kayan ba rot da bai ƙone ba, ya, ma, danshi ne ba tsanani. Thermal Paint aiyuka kuma alaka da kadaici ruwa, bukatar kawai karamin Layer. Aiki da yanayin zafi Range daga debe 60 zuwa da 200 digiri. Bututu, an rufe Paint, ba kawai kare, amma kuma yana da wani m bayyanar. Domin haɗa da abu zuwa ga tube, ya bukatar na'urorin haɗi cewa presents adhesives, staples, m kaset da kuma sauran kayan. Kafin ka rufe da bututu, da shi wajibi ne don yin hankali ma'aunai. Kadaici, kamar yadda muka sani, ba ya faru da yawa, amma a kananan adadin shi zai iya kai wa ga m lalacewa.