Zipangizo za ulimi wa thirakitala, fosholo yolimba kwambiri ya pulawo Chithunzi Chowonetsedwa

Zipangizo za ulimi wa thirakitala, fosholo yolimba kwambiri yopangira pulawo

Kufotokozera Kwachidule:

Iyi ndi fosholo ya ulimi yomwe imagwiritsidwa ntchito polumikiza mathirakitala. Imapangidwa ndi chitsulo cha boron cholimba kwambiri, cholimba kwambiri komanso cholimba, chomwe chingathandize kwambiri kulowa ndi kutembenuza nthaka. Kudzera muukadaulo wolondola wa kutentha, imakhala ndi kukana kwabwino kwambiri kwa kusweka ndi kusweka, zomwe zimachepetsa bwino kukana kulima ndipo ndizoyenera mitundu yosiyanasiyana ya nthaka youma. Poyerekeza ndi nsonga wamba za fosholo, fosholo iyi imakhala ndi nthawi yayitali yogwira ntchito ndipo ndi chowonjezera chabwino kwambiri pakulima nthaka muulimi wamakono.

Tumizani imelo kwa ife

Tsatanetsatane wa Zamalonda

Ma tag a Zamalonda

Fosholo ya pulawo, monga "mano" a pulawo, imagwira ntchito yodula ndi kulima kwambiri ndi nthaka, ndipo ubwino wake umakhudza mwachindunji momwe kulima kumagwirira ntchito komanso kugwiritsa ntchito mafuta moyenera. Fosholo iyi ya pulawo idapangidwa ngati pulawo yoyimitsira ndi yokokera mathirakitala akuluakulu ndi apakatikati, yoyenera kugwiritsidwa ntchito movutikira monga kulima mozama m'nthaka youma, kulima mozungulira m'minda ya mpunga, komanso kubwezeretsa nthaka.

Zipangizo zogulira zinthu zakunja, zosavala bwino:
Chogulitsachi chimapangidwa ndi chitsulo chapamwamba cha alloy boron (monga 60Si2Mn kapena 65Mn) chokhala ndi zinthu zambiri za chromium ndi molybdenum, zomwe zimapangidwa ndi kupondaponda kamodzi kokha. Kudzera mu njira zolimba zamafuta ndi kutentha kwambiri, kuuma kwa tsamba la fosholo kumafika pa HRC 48-52, pomwe dzenje loyika chogwirira cha fosholo limasunga kulimba kwambiri. Khalidwe ili "lolimba kunja ndi lolimba mkati" limatsimikizira kuti mapulawu ndi mafosholo sakupindidwa kapena kusweka mosavuta panthawi yogwira ntchito kwa nthawi yayitali mumchenga ndi miyala kapena nthaka yopapatiza, ndipo nthawi yawo yogwirira ntchito imakulitsidwa ndi 30% -50% poyerekeza ndi zinthu wamba.

Kapangidwe ka sayansi, kulowa mwachangu m'nthaka:
Kapangidwe ka pamwamba kooneka ngati arc komwe kamapangidwa motsatira mfundo za makina amadzimadzi kumatha kuchepetsa bwino kukana kumatirira kwa nthaka. Kapangidwe kapadera ka "tsamba lodzigayira lokha" kamaonetsetsa kuti pulawo ndi fosholo zimasunga ngodya yakuthwa yodulira panthawi yogwiritsidwa ntchito, kuchepetsa kwambiri mphamvu yokoka ya thirakitala, kusunga mafuta, ndikuwonetsetsa kuti kulima kuli kozama nthawi zonse. Mabuloko a nthaka amapindidwa kukhala zidutswa zazing'ono, zomwe zimapangitsa kuti pakhale malo abwino obzala mbewu pambuyo pake.

Luso lolondola, kukhazikitsa kosavuta:
Chogulitsachi chimagwiritsa ntchito kupondaponda kwa nkhungu kolondola kwambiri, ndipo cholakwika cha malo pakati pa mabowo onse oyika (kuphatikiza mabowo osiyidwa) chimayendetsedwa mkati mwa ± 1mm. Musanachoke ku fakitale, kutsimikizira mawonekedwe ake kumachitika kuti zitsimikizire kuti zikugwirizana bwino ndi maziko a thupi la pulawo la mitundu yayikulu pamsika, monga Leiken, Beisong, ndi mapulawo ophatikizika am'nyumba. Tsamba lililonse la pulawo lakhala likuthandizidwa kupewa dzimbiri, ndi utoto wofanana komanso wopanda mtundu wosintha panthawi yosungira.

Imagwiritsidwa ntchito kwambiri pochepetsa kuuma kwa nthaka m'minda youma, kulima ndi kukanikiza udzu mutabwerera kumunda, ntchito zopukutira nthaka m'minda ya mpunga, ndi kubwezeretsa nthaka ndi kuswa nthaka. Kaya ndi nthaka yakuda kumpoto chakum'mawa kwa China, nthaka ya mchenga kumpoto chakumadzulo kwa China, kapena nthaka yofiira yomata kum'mwera, fosholo iyi ingapereke kukana kuwonongeka bwino komanso kukana kugwedezeka kuti muteteze kulima kwanu kwa masika ndi kulima kwa nthawi yophukira.