1. Menene maki mai laushi mai kashewa
Abin da ake kira quenching soft point shine wuri mai laushi wanda ba a kwance ba a kan sassan.Saboda haka, ana kiran shi da laushi (softspot) .Mai laushi mai laushi na quenching na ruwa ya fi tsanani fiye da na man fetur, saboda saman yana da fim din tururi. don rage saurin sanyaya.Wannan sabon abu da aka fi sani da Leiden sanyi sabon abu.Ko da yake man quenching ne kasa taurin, wato, rashin isasshen quenching, amma ba shi da sauki a sa quenching taushi point.Duk da haka, underquenching inda decarbonization ko oxidation fata. yayi kama da na quenching taushi batu.
An ce a lokacin ruwan sama na plum yana da wuyar kashe wuri mai laushi, idan yanayin zafi na wurin kashewa ya wuce 55%, yana yiwuwa ya kashe wuri mai laushi.
A saman high mita quenching sassa yana yiwuwa ga wanzami scars, ko Japan wuka gefen, da haske launuka suna quenching taushi batu.The microtissue na quenching taushi batu ne martensite da wani bakin ciki pearlophyte (nodular flexter) tare da haske launi.
2. Yadda ake samun maki mai laushi mai kashewa
Yawancin lokaci akwai hanyoyi guda uku don nemo maki masu laushi da aka kashe. Hanya ta farko ita ce ganin launin haske mai haske akan saman nika: hanya ta biyu ita ce hanya ta uku ita ce amfani da lalatawar acid don nemo wurin laushi mai kashewa;wato, don tsoma sassan cikin 50% hydrochloric acid ruwa bayani (ruwan rigar) don lalata, idan ɓangaren ɓangaren ya bayyana baƙar fata, tabo baƙar fata shine maki mai laushi mai kashewa. Duk da haka, ya kamata a lura cewa ƙananan zafin jiki (180 ~ 200C) sassa suna lalata a cikin wuri mai tauri, kuma launi a cikin wuri mara kyau. Za'a iya auna zurfin Layer na quenched ta amfani da wannan hanya.
3. Yadda za a hana quenching daga wuri mai laushi
Don hana quenching na maki masu laushi, kada ku oxidize ko decarbonize sassan lokacin da ake dumama farko.Na biyu, don hana farfajiyar sassan da aka haɗe da fim ɗin tururi na ruwa, yana da kyau a cika ruwa mai kashewa kuma amfani da fesa ruwa zuwa sanyi.Bugu da ƙari, idan quenching tare da ruwan gishiri 10% na iya hana gaba ɗaya hana quenching na maki masu laushi. Bugu da ƙari, yin amfani da wani nau'i na bakin ciki na polishing foda a saman sassan quenching kuma hanya ce mai kyau don hana quenching mai laushi. Points.The polishing foda sanyaya sauri fiye da uncoated karfe sassa kuma ba ya kashe da taushi batu, don haka da ake ji polishing foda a Japan wuka quenching aiki ne a asirce hanya.Amma dole ne a dauka.Idan polishing foda ya yi kauri sosai, sanyaya yana jinkirin, ba shi da wahala.
Foda mai walƙiya yana da bakin ciki kuma ana amfani da shi a saman sassan quenching, kuma lokacin da quenching, farfajiyar ba ta kewaye da fim ɗin tururi ba, wanda ya zama ƙananan kumfa kuma ya tashi da sauri, don haka yana sanyi da sauri.
A matsayin wakili na sutura, ban da foda mai gogewa.Da toka da kaolin da ruwa;mica ba tare da yumbu mai laushi da ruwa ba: pumice tare da yumbu mai laushi da ruwa, waɗannan an ce su ne girke-girke masu kyau.
Kwanan nan, ana amfani da maganin kashe ruwa mai narkewa (polymer quenching solution) maimakon quenching mai, wanda ke da juzu'i kuma yana iya samar da fim a saman lokacin da sassan da aka jiyya suka hura.Lokacin da yawan zafin jiki ya ragu zuwa kimanin 90 ℃ (wasu mafita sune 74 ℃), an narkar da abin rufe fuska.Saboda haka, sanyaya a cikin kewayon zafin jiki mai girma za a iya aiwatar da shi a ko'ina don hana quenching na maki mai laushi. Sakamakon yana da kyau kamar yadda yake. shafa foda da shi}
Bugu da kari, idan ultrasonic sanyaya” 25000 makonni / s), da tururi fim kuma za a iya yadda ya kamata cire, don haka da quenching na taushi maki kuma za a iya hana. Ultrasonic sanyaya sabuwar sanyaya hanya.
Abubuwan da aka bayar na Shandong Jute Steel Pipe Co., Ltd.
Lambobin sadarwa: Mr. Ji
WhatsApp: +86 18865211873
WeChat: +86 18865211873
E-mail: jutesteelpipe@gmail.com
E-mail: juteguanye@aliyun.com
Lokacin aikawa: Maris 12-2022
