Sintered silicon carbide wani muhimmin abu ne na yumbu, wanda aka yi amfani da shi sosai a cikin yanayin zafi, babban matsin lamba da filayen ƙarfi. Reactive sintering na SIC babban mataki ne na shirya kayan SIC da ba a so. Mafi kyawun ikon sarrafa halayen SIC na iya taimaka mana sarrafa yanayin amsawa da haɓaka ingancin samfur. Mafi kyawun hanyar sarrafawa na sintered silicon carbide dauki an tattauna a wannan takarda.
1. Inganta halayen halayen SIC
Yanayin amsawa sune mahimman sigogin halayen silicon carbide na sintered, gami da zazzabin amsawa, matsa lamba, rabo mai amsawa da lokacin amsawa. Lokacin inganta yanayin amsawa, wajibi ne a daidaita daidai da ƙayyadaddun buƙatun aikace-aikacen da tsarin amsawa.
(1) Zazzabi mai amsawa: Yanayin amsawa yana ɗaya daga cikin mahimman abubuwan da ke shafar saurin amsawa da ingancin samfur. A cikin takamaiman kewayon, mafi girman zafin amsawa, saurin amsawa, mafi girman ingancin samfur. Koyaya, yawan zafin jiki mai yawa zai haifar da haɓakar pores da fasa a cikin samfurin, yana shafar ingancin samfurin.
(2) Matsin amsawa: Matsin amsawa shima yana da tasiri akan saurin amsawa da yawan samfur. A cikin wani takamaiman kewayon, mafi girman matsi na amsawa, da sauri saurin amsawa kuma mafi girman yawan samfurin. Duk da haka, matsi mai tsayi da yawa na iya haifar da ƙarin pores da fasa a cikin samfurin.
(3) reactant taro rabo: reactant taro rabo ne wani muhimmin factor shafi dauki gudun da samfurin ingancin. Lokacin da adadin carbon zuwa silicon taro ya dace, ƙimar amsawa da yawan samfur. Idan reactant taro rabo bai dace ba, zai shafi dauki kudi da kuma samfurin taro.
(4) Lokacin amsawa: Lokacin amsawa yana ɗaya daga cikin abubuwan da ke shafar saurin amsawa da ingancin samfur. A cikin wani takamaiman kewayon, mafi tsayin lokacin amsawa, da rage saurin amsawa kuma mafi girman ingancin samfur. Koyaya, tsayin lokacin amsawa zai haifar da haɓakar pores da fasa a cikin samfurin, yana shafar ingancin samfurin.
2. Tsarin sarrafawa na reactive sintering silicon carbide
A cikin aiwatar da sintering SIC dauki, shi wajibi ne don sarrafa dauki tsari. Makasudin sarrafawa shine tabbatar da kwanciyar hankali na amsawa da daidaiton ingancin samfurin. Ikon aiwatar da amsa ya haɗa da sarrafa zafin jiki, sarrafa matsi, sarrafa yanayi da sarrafa ingancin amsawa.
(1) Kula da yanayin zafi: Kula da yanayin zafi yana ɗaya daga cikin mahimman abubuwan sarrafa tsarin amsawa. Ikon zafin jiki Ya kamata a sarrafa zafin jiki kamar yadda zai yiwu don tabbatar da daidaiton tsarin amsawa da daidaiton ingancin samfur. A cikin samarwa na zamani, tsarin sarrafa kwamfuta yawanci ana amfani da shi don sarrafa daidaitattun zafin jiki.
(2) Kula da matsi: Kula da matsi wani muhimmin al'amari ne na sarrafa tsarin amsawa. Ta hanyar sarrafa matsin lamba, ana iya tabbatar da kwanciyar hankali na tsarin amsawa da daidaiton ingancin samfur. A cikin samarwa na zamani, ana amfani da tsarin sarrafa kwamfuta don sarrafa matsi na amsa daidai.
(3) Kula da yanayi: Kula da yanayin yanayi yana nufin amfani da takamaiman yanayi (kamar inert yanayi) a cikin tsarin amsawa don sarrafa tsarin amsawa. Ta hanyar sarrafa yanayin, ana iya tabbatar da kwanciyar hankali na tsarin amsawa da daidaiton ingancin samfurin. A cikin samarwa na zamani, ana amfani da tsarin sarrafa kwamfuta don sarrafa yanayi.
(4) Reactant ingancin iko: Reactant ingancin iko ne daya daga cikin muhimman al'amurran da suka shafi tabbatar da kwanciyar hankali na dauki tsari da kuma daidaito na samfurin ingancin. Ta hanyar sarrafa ingancin masu amsawa, ana iya tabbatar da kwanciyar hankali na tsarin amsawa da daidaiton ingancin samfurin. A cikin samarwa na zamani, tsarin sarrafa kwamfuta yawanci ana amfani dashi don sarrafa ingancin reactant.
Mafi kyawun iko na SIC reactive sintering shine babban mataki don shirya kayan SIC masu inganci masu inganci. Ta hanyar inganta yanayin amsawa, sarrafa tsarin amsawa da sa ido kan samfuran amsawa, ana iya tabbatar da daidaiton tsarin amsawa da daidaiton ingancin samfur. A cikin aikace-aikacen aikace-aikacen, ana buƙatar daidaita halayen silicon carbide bisa ga takamaiman yanayin aikace-aikacen don saduwa da buƙatun aikace-aikacen daban-daban.
Lokacin aikawa: Juni-05-2023