Nkhani - "Yonse Yonse" mu Mbale ya Chitsulo cha Carbon

Mbale yachitsulo cha kaboni ndi imodzi mwa magulu ofunikira kwambiri a zipangizo zachitsulo. Imachokera ku chitsulo, yokhala ndi mpweya wa kaboni pakati pa 0.0218%-2.11% (muyezo wa mafakitale), ndipo ilibe kapena ilibe zinthu zochepa zosakaniza. Malinga ndi kuchuluka kwa kaboni, ikhoza kugawidwa m'magulu awa:
Chitsulo chotsika cha kaboni(C≤0.25%): kulimba bwino, kosavuta kukonza, Q235 ndi ya gulu ili;
Chitsulo cha mpweya chapakati(0.25%
Chitsulo cha kaboni chochuluka(C>0.6%): kuuma kwambiri komanso kufooka kwambiri.

Chitsulo cha kaboni cha Q235: tanthauzo ndi magawo apakati (muyezo wa GB/T 700-2006)

Kapangidwe kake	C	Si	Mn	P	S
Zamkati	≤0.22%	≤0.35%	≤1.4%	≤0.045%	≤0.045%

Kapangidwe ka makina:
Mphamvu yotulutsa: ≥235MPa (makulidwe ≤16mm)
Mphamvu yokoka: 375-500MPa
Kutalika: ≥26% (makulidwe ≤16mm)

Zipangizo ndi Magwiridwe Abwino

Zipangizo:Zipangizo zodziwika bwino zimaphatikizapoGR.B, X42, X46, X52, X56, X60, X65, X70, ndi zina zotero.

Makhalidwe Ogwira Ntchito
Mphamvu Yaikulu: Yokhoza kupirira kuthamanga kwambiri komwe kumapangidwa ndi madzi monga mafuta ndi gasi wachilengedwe panthawi yoyendera.
Kulimba KwambiriSikophweka kusweka pamene pachitika ngozi yakunja kapena kusintha kwa nthaka, zomwe zimathandiza kuti payipi igwire ntchito bwino.
Kukana Kwabwino kwa Dzimbiri: Malinga ndi malo osiyanasiyana ogwiritsira ntchito ndi malo olumikizirana, kusankha zipangizo zoyenera ndi njira zochizira pamwamba kungathandize kupewa dzimbiri ndikuwonjezera nthawi yogwira ntchito ya payipi.

Makhalidwe a "wankhondo wa hexagonal" wa Q235

Kugwira Ntchito Kwabwino Kwambiri
Kutha kupotoka: Sikofunikira kutentha pasadakhale, koyenera kuwotcherera arc, kuwotcherera gasi ndi njira zina (monga kuwotcherera kapangidwe ka chitsulo);
Kukhazikika Kozizira: Ikhoza kupindika mosavuta ndikusindikizidwa (chitsanzo: chipolopolo cha bokosi logawa, njira yopumira mpweya);
Kutha kugwira ntchito: Kugwira ntchito kokhazikika pansi pa kudula kothamanga pang'ono (kukonza zida zamakina).
Kulinganiza Kwathunthu kwa Makina

Mphamvu vs KulimbaMphamvu ya 235MPa imaganizira kukana kunyamula katundu komanso kukana kukhudzidwa (poyerekeza ndi 195MPa ya Q195);
Kusinthasintha kwa Chithandizo cha Pamwamba: Utoto wosavuta kuupaka ndi kupopera (monga zotchingira, zitsulo zopepuka).
Kugwiritsa Ntchito Bwino Kwambiri Zachuma
Mtengo wake ndi wocheperako ndi 15%-20% poyerekeza ndi wachitsulo cholimba kwambiri (monga Q345), choyenera kugwiritsidwa ntchito pamlingo waukulu.
Mlingo Wapamwamba wa Kukhazikika
Kukhuthala kofanana: 3-50mm (zokwanira, kuchepetsa kusintha kwa zinthu);
Miyezo yogwiritsira ntchito: GB/T 700 (yapakhomo), ASTM A36 (yofanana ndi yapadziko lonse lapansi).

Gulani ndi Kugwiritsa Ntchito "Buku Lotsogolera Kupewa"

Kuzindikira Ubwino:
Maonekedwe: palibe ming'alu, zipsera, mapindidwe (muyezo wa mawonekedwe a mbale ya GB/T 709);
Chitsimikizo: Yang'anani kapangidwe kake, mawonekedwe a makina ndi lipoti lozindikira zolakwika (Kuzindikira zolakwika za UT ndikofunikira pazigawo zofunika za kapangidwe kake).
Njira yolimbana ndi dzimbiri:
M'nyumba: utoto woletsa dzimbiri (monga utoto wofiira wa lead) + utoto wa pamwamba;
Kunja: choviika ndi madzi otentha (chophimba ≥85μm) kapena chopopera ndi fluorocarbon.
Chidziwitso Chowotcherera:
Kusankha ndodo yowotcherera: Mndandanda wa E43 (monga J422);
Mbale yopyapyala(≤6mm): sikufunika kutentha koyambirira, mbale yokhuthala (>20mm): kutentha koyambirira 100-150℃ kuti mupewe ming'alu.