The high-pressure pressure sensor YN52S00027P1 ndiyoyenera SK200-6 excavator of Shengang

◆ Pazinthu zomwe zimagwiritsidwa ntchito muzitsulo zowonongeka kwambiri, chithandizo cha kutentha ndi kuuma kwa pamwamba nthawi zambiri chimagwiritsidwa ntchito kuti apititse patsogolo kukana kwawo kwa extrusion ndi kukana kukokoloka.

1, vacuum kutentha mankhwala

Chithandizo cha kutentha kwa vacuum chimatanthawuza njira yochizira kutentha komwe chogwirira ntchito chimayikidwa mu vacuum. Kutentha kwa vacuum sikutulutsa makutidwe ndi okosijeni, decarburization ndi dzimbiri zina pakutentha, komanso kumagwira ntchito yoyeretsa pamwamba, kutsitsa ndi kutsitsa. Hyrojeni, nayitrogeni ndi okosijeni zomwe zimatengedwa ndi zinthu panthawi yosungunula zimatha kuchotsedwa mu vacuum, ndipo mtundu ndi magwiridwe antchito azinthuzo zitha kupitilizidwa. Mwachitsanzo, pambuyo pa chithandizo cha kutentha kwa vacuum ya ultra-high pressure singano valavu yopangidwa ndi W18Cr4V, kukhudzika kwa valavu ya singano kumawonjezeka bwino, ndipo nthawi yomweyo, makina ndi moyo wautumiki umatheka.

2. Mankhwala olimbikitsa pamwamba

Pofuna kupititsa patsogolo ntchito za ziwalo, kuwonjezera pa kusintha zinthu, njira zochiritsira zowonjezereka zimatengedwa. Monga kuzimitsa kwamoto (kutentha kwamoto, kutentha kwapamwamba komanso sing'anga kutentha kwapang'onopang'ono kuzimitsidwa, kukhudzana ndi kutentha kwa magetsi, kutentha kwa electrolyte pamwamba, kuzimitsa moto wa electrolyte, laser electron mtengo Kutentha pamwamba, etc.), carburizing, nitriding, cyaniding, boronizing (TD njira), laser kulimbitsa, mankhwala nthunzi deposition (CVD njira), thupi nthunzi deposition (PVD njira), plasma mankhwala nthunzi deposition (PCVD njira) plasma kupopera mbewu mankhwalawa, etc.

Physical vapor deposition (njira ya PVD)

Mu vacuum, njira zakuthupi monga evaporation, plating ion ndi sputtering zimagwiritsidwa ntchito kupanga ayoni achitsulo. Izi zitsulo ayoni waikamo pamwamba pa workpiece kupanga ❖ kuyanika zitsulo, kapena anachita ndi riyakitala kupanga ❖ kuyanika pawiri. Njira yochizira imeneyi imatchedwa physical vapor deposition, kapena PVD mwachidule. Njirayi ili ndi ubwino wa kutentha kwapansi, kutentha kwa 400 ~ 600 ℃, kutentha kwapang'onopang'ono komanso kukhudzidwa pang'ono pamapangidwe a masanjidwewo ndi katundu wa magawo. TiN wosanjikiza adayikidwa pa valavu ya singano yopangidwa ndi W18Cr4V ndi njira ya PVD. TiN wosanjikiza imakhala yolimba kwambiri (2500 ~ 3000HV) komanso kukana kwamphamvu kwambiri, komwe kumathandizira kukana kwa dzimbiri kwa valavu, sikuwonongeka mu dilute hydrochloric acid, sulfuric acid ndi nitric acid, ndipo kumatha kukhala kowala. Pambuyo pa chithandizo cha PVD, zokutira zimakhala zolondola bwino. Ikhoza kuphwanyidwa ndi kupukutidwa, ndipo kuuma kwake pamwamba ndi Ra0.8µm, yomwe imatha kufika 0.01µm pambuyo popukuta.