Asalin ƙafafun ƙofar：
Dangane da Babban Tarihin Duniya, ƙafafun sun fara bayyana ne a cikin Mesopotamiya, kuma a cikin China, ƙafafun sun bayyana a kusan 1500 BC. Ta mirgina dabaran, gogayya tare da fuskar sadarwar na iya raguwa sosai, kuma za a iya sauƙaƙe abubuwa masu nauyi daga wuri ɗaya zuwa wani wuri, ta yadda za a iya rage kuɗin aiki.
Aiwatar da dabaran zuwa kofa babban shiri ne. Wheelofar ƙofar ta samo asali ne daga China kuma ta bazu zuwa Koriya, Japan da sauran ƙasashe tare da al'adun Sinawa. A cikin wasu tsoffin zane-zanen kasar Sin ana iya ganin kofofin da ke barbaje a warwatse, kamar zanen shimfidar wuri na daular Song, akwai kofofin zamiya.
A farkon karni na 19, Burtaniya Stephenson ya samar da jirgin kasa na farko a duniya. Fitowar jirgin ya haɓaka ƙirƙirar tituni da ƙafafun jirgin ƙasa tare da flanges. Wheelsafafun jirgin ƙasa tare da flanges suna taimakawa ga hana jiragen ƙasa jirgi da ɓata lokacin da suke gudu da sauri ko juyawa. An yi amfani da ƙirar wannan motar motar daga bayaƙafafun ƙofar.
A farkon karni na 19, Burtaniya Stephenson ya samar da jirgin kasa na farko a duniya. Fitowar jirgin ya haɓaka ƙirƙirar tituni da ƙafafun jirgin ƙasa tare da flanges. Wheelsafafun jirgin ƙasa tare da flanges suna taimakawa ga hana jiragen ƙasa jirgi da ɓata lokacin da suke gudu da sauri ko juyawa. An yi amfani da ƙirar wannan motar motar daga bayaƙafafun ƙofar.
A ƙarshen karni na 20, buƙatar ƙafafun ƙofargirma. Koyaya, kafin 2002, kusan babu ƙwararrun ƙwararrun ƙafafun ƙafafun ƙofar a cikin China, kuma kasuwar ƙafafun ƙofar ta kasance mallakin wasu ƙasashen waje kamar Taiwan, Amurka, Jamus, Japan da sauransu. Koyaya, babu kamfanonin cikin gida da zasu iya gasa tare da su. Masu ƙera cikin gida na Dinggu Hardware sun fara haɓaka kuma sun samar da ƙafafun ratayewa. Kirkirar ƙofar kofa a cikin fasaha ko a cikin inganci ya yi daidai da matakin duniya na ɗaga ƙafafun, har ma a wasu fannoni sun wuce.
Kayan kayan hawan keken yana da yawa iri-iri, babban kayan kwalliyar ya hada da bakin karfe, zinc gami, gami da sauransu.
Kayan ƙofar dabaran:
A cewar kayan ƙofar dabaran,akwai karfe nadi, m roba nadi, roba hali nadi, fiber nailan hali nadi da multilayer kumshin nadi. Kayan kwalliyar filastik na gama gari mai laushi ne, ana iya amfani dashi kawai don ƙasa da 60KG na ƙofar, ƙarfin abin nadi na ƙarfe, amma a cikin hulɗa da waƙar da sauƙi don samar da amo; POM yana da kyawawan kayan aikin inji, juriya gajiyarsa ita ce mafi girma a cikin thermoplastic, yanayin robarta ya fi nailan 66, ABS, polycarbonate, yawan zafin jiki amfani. POM nadi nadi wuya rubutu, m zamiya, m, abu yi ne da wuya a sarrafa, kawai 'yan gida masana'antun iya samar, ta amfani da m POM nadi, da hali ne sanya a tsakiyar babban jiki, kariya, sa zamiya sakamako ne mafi kyau, amma kuma ya fi karko.
Post lokaci: Apr-13-2021