Menene bambanci tsakanin Q195, Q215, Q235, Q255 da Q275 dangane da kayan aiki?
Karfe mai siffar carbon shine ƙarfe da aka fi amfani da shi, mafi yawan adadin da ake naɗewa a cikin ƙarfe, siffofi da siffofi, gabaɗaya ba sai an yi amfani da su kai tsaye ba ta hanyar zafi, galibi don tsari da injiniyanci gabaɗaya.
Q195, Q215, Q235, Q255 da Q275, da sauransu, bi da bi, suna nuna matakin ƙarfe, matakin ƙarfe ta hanyar wakilin wurin samarwa na harafin (Q), ƙimar ma'aunin samarwa, inganci, inganci da sauran alamomi (A, B, C, D) hanyar deoxygenation na alamomi da sauransu akan sassa huɗu na jerin abubuwan da aka tsara. Daga cikin abubuwan da aka haɗa a cikin sinadarai, matakan ƙarfe masu laushi na Q195, Q215, Q235, Q255 da Q275 suna da girma, mafi girman abun cikin carbon, abun cikin manganese, mafi daidaiton ƙarfinsa. Kayayyakin injiniya daga maki, maki da ke sama suna nuna cewa kauri ≤ 16mm na ma'aunin samarwa na ƙarfe. Ƙarfin juriyarsa sune: 315-430, 335-450, 375-500, 410-550, 490-630 (obN/mm2); Tsawonsa ya kasance: 33, 31, 26, 24, 20 (0.5%). Saboda haka, lokacin gabatar da ƙarfe ga abokan ciniki, ya kamata a tunatar da abokan ciniki su sayi kayayyaki daban-daban na ƙarfe bisa ga kayan samfurin da ake buƙata, don kada ya shafi ingancin samfurin.
Menene bambanci tsakanin kayan Q235A da Q235B?
Q235A da Q235B dukkansu ƙarfe ne na carbon. A cikin ƙa'idar ƙasa ta GB700-88, bambancin kayan Q235A da Q235B galibi yana cikin sinadarin carbon da ke cikin ƙarfe, kayan da ke cikin sinadarin carbon da ke cikin Q235A a cikin 0.14-0.22 ﹪ tsakanin; kayan Q235B ba sa yin gwajin tasiri, amma galibi suna yin gwajin tasirin zafi, V-notch. Idan aka kwatanta, halayen injinan kayan ƙarfe na ƙarfe na Q235B sun fi na ƙarfe na Q235A kyau. Gabaɗaya, injin niƙa na ƙarfe da ke cikin bayanan da aka gama kafin barin masana'anta an yi masa alama a kan farantin shaida. Masu amfani za su iya sanin ko kayan shine Q235A, Q235B, ko wasu kayan da ke kan farantin alama.
Ma'aunin ƙarfe na Japan sune SPHC, SPHD, da sauransu. Me suke nufi?
Maki na ƙarfe na Japan (jerin JIS) na ƙarfe na yau da kullun ya ƙunshi sassa uku: ɓangaren farko yana nuna kayan, kamar: S (Ƙarfe) yana nufin ƙarfe, F (Ferrum) yana nufin ƙarfe. Kashi na biyu na siffofi daban-daban, nau'ikan, amfani, kamar P (faranti) wannan farantin, T (bututu), K (kogu) wannan kayan aiki. Kashi na uku na halayen tebur na lamba, gabaɗaya mafi ƙarancin ƙarfin tensile. Kamar: ss400 - na farko s cewa ƙarfe (Ƙarfe), na biyu s cewa "tsari" (Structuree), 400 don ƙarfin layin ƙasa na ƙarfe na yau da kullun na 400Mpa. Daga cikinsu: sphc ----- na farko Ssteel Steel, P don farantin Pate taƙaitaccen bayani, H don zafi Takaitaccen bayani na zafi, Takaitaccen bayani na kasuwanci, duka yana nuna cewa layin gaba ɗaya mai zafi da ƙarfe.
SPHD------ yana nufin takardar ƙarfe mai zafi da aka yi birgima da tsiri don yin tambari.
SPHE------- yana nufin zanen ƙarfe mai zafi da aka naɗe da kuma zare don zane mai zurfi.
SPCC---------- yana nufin takardar ƙarfe mai sanyi da tsiri don amfani gabaɗaya, daidai da matakin China Q195-215A. Harafi na uku C gajeriyar hanya ce ta Cold, wanda ake buƙata don tabbatar da gwajin juriya a ƙarshen matakin tare da T don SPCCT.
SPCD-------- yana nuna ƙarfe mai sanyi da aka yi birgima da kuma tsiri na ƙarfe don yin huda, daidai da ƙarfe mai inganci na China 08AL (13237) na tsarin carbon.
SPCE-------- yana nufin takardar ƙarfe mai sanyi da tsiri don zane mai zurfi, daidai da ƙarfe mai huda China 08AL (5213). Don tabbatar da rashin aiki, ƙara N zuwa SPCEN a ƙarshen aji.
Takardar ƙarfe mai sanyi da aka yi da ƙarfe mai tsiri, yanayin annealed na A, daidaitaccen zafin S, 1/8 mai tauri don 8, 1/4 mai tauri don 4, 1/2 mai tauri don 2.
Lambar gamawa ta saman: babu kammala sheki ga D, kammala sheki ga B. Kamar SPCCT-SD yana nuna takardar carbon mai zafi, babu kammala sheki ga sanyi don amfani gabaɗaya. Sannan SPCCT-SB yana nuna takardar carbon mai zafi, mai haske, mai birgima mai sanyi tare da tabbacin kaddarorin injiniya.
Lokacin Saƙo: Yuni-24-2024
