Kusiyana pakati pa kukula kwa SC ndi DN wa kanasonkhezereka zitsulo chitoliro:

1.SC nthawi zambiri imatanthawuza chitoliro chachitsulo chowotcherera, chinenero cha zitsulo ZOCHITA, ndi chidule cha zinthuzo.

2. DN amatanthauza m'mimba mwake mwadzina la kanasonkhezereka zitsulo chitoliro, amene ndi chitoliro m'mimba mwake chisonyezero cha chitoliro.

3. Mipope yachitsulo imagawidwa m'mapaipi achitsulo ozizira-malata ndi mipope yachitsulo yotentha yovina.Mipope yazitsulo zoziziritsa kuzizira yaletsedwa, ndipo yotsirizirayi yalimbikitsidwa ndi boma kuti igwiritsidwe ntchito kwakanthawi.M’zaka za m’ma 1960 ndi m’ma 1970, maiko otukuka padziko lapansi anayamba kupanga mitundu yatsopano ya mapaipi ndi mapaipi oletsa malata.Unduna wa Zomangamanga ndi maunduna ndi makomiti ena anayi adaperekanso chikalata chofotokoza kuti chitoliro cha malata chidzaletsedwa ngati chitoliro chamadzi kuyambira 2000. Chitoliro cha malata sichimagwiritsidwa ntchito kawirikawiri m'mapaipi amadzi ozizira a malo atsopano okhalamo.Mapaipi amadzi otentha m'madera ena amagwiritsa ntchito mapaipi a malata.Mapaipi azitsulo otentha kwambiri amagwiritsidwa ntchito kwambiri poteteza moto, mphamvu yamagetsi ndi misewu yayikulu.
Zowonjezera zambiri:

Zokhudza magwiridwe antchito

(1) Mpweya;mpweya wochuluka wa carbon, umakwera kwambiri kuuma kwa chitsulo, koma kumayipitsa pulasitiki ndi kulimba kwake.

(2) Sulfure;ndi chonyansa chovulaza chachitsulo.Chitsulo chokhala ndi sulfure wambiri chikagwiritsidwa ntchito pa kutentha kwakukulu, zimakhala zosavuta kukhala zowonongeka ndipo nthawi zambiri zimatchedwa hot brittleness.

(3) Phosphorus;imatha kuchepetsa kwambiri pulasitiki ndi kulimba kwachitsulo, makamaka pa kutentha kochepa, chodabwitsachi chimatchedwa kuzizira kozizira.Muzitsulo zapamwamba, sulfure ndi phosphorous ziyenera kuyendetsedwa mosamalitsa.Komabe, kuchokera ku lingaliro lina, kuphatikizidwa kwa sulfure ndi phosphorous yapamwamba muzitsulo zochepa za carbon kungapangitse kuti zikhale zosavuta kudula, zomwe zimapindulitsa kuwongolera machinability zitsulo.

(4) Manganese;akhoza kusintha mphamvu ya chitsulo, akhoza kufooketsa ndi kuthetsa mavuto a sulfure, ndipo akhoza kusintha kuuma kwa chitsulo.Chitsulo chachikulu cha alloy (chitsulo chapamwamba cha manganese) chokhala ndi manganese ambiri chimakhala ndi kukana kwamphamvu.Ndi zina zakuthupi.

(5) Silikoni;imatha kukulitsa kuuma kwachitsulo, koma pulasitiki ndi kulimba kumachepa.Chitsulo chomwe chimagwiritsidwa ntchito popanga magetsi chimakhala ndi silicon yambiri, yomwe imatha kusintha mphamvu ya maginito yofewa.

(6) Tungsten;amatha kusintha kuuma kofiira ndi mphamvu ya kutentha kwachitsulo, ndipo amatha kusintha kukana kwachitsulo.

(7) Chromium;akhoza kusintha kuuma ndi kuvala kukana zitsulo, ndipo akhoza kusintha kukana dzimbiri ndi makutidwe ndi okosijeni kukana zitsulo.

Kwa kukana kwa dzimbiri, mapaipi ambiri achitsulo (mapaipi akuda) amapangidwa ndi malata.Mapaipi achitsulo amagawidwa kukhala galvanizing otentha-kuviika ndi zitsulo zamagetsi zinki.Kutentha-kuviika galvanizing kanasonkhezereka wosanjikiza ndi wandiweyani, ndipo mtengo wa electro-galvanizing ndi otsika, kotero pali kanasonkhezereka zitsulo chitoliro.