Ugushirwa mu migwi n'imirongo y'ibikorwa vy'ibikoresho vyo gukingira amavalve

Gukingira umuvuduko ni igice gihambaye c'umuvuduko wose, intumbero nyamukuru yawo ni ukurinda gusohoka,umupfundaintebe yo gukingira na yo yitwa impeta yo gukingira, ni ishirahamwe rikorana ataco rihinduye n’ivyo bihimba biri mu muyoboro kandi bikabuza ivyo bihimba gutemba. Iyo iyo valve iriko irakoreshwa, hariho ibintu bitandukanye biri mu muyoboro, nk’amazi, gazi, amavuta, ibintu bishobora gutera uburozi, n’ibindi, kandi ibikingira vy’ivyo bikoresho bitandukanye bikoreshwa ahantu hatandukanye kandi bishobora guhura n’ibintu bitandukanye.

TWSVAlvebikwibutsa ko ibikoresho vy’ibipfukisho vy’amavalve bishobora guca mu mice ibiri, ni ukuvuga ibikoresho vy’ivyuma n’ibikoresho bitagira ivyuma. Ivyuma bitagira ivyuma bikoreshwa muri rusangi mu mirongo y’amazi ku bushuhe n’umuvuduko bisanzwe, mu gihe ivyuma vy’ivyuma bifise ibikorwa vyinshi kandi bishobora gukoreshwa ku bushuhe bwinshi. umukazo mwinshi cane.

1. Igikoresho c'imipira

Igikapu c’ivyuma ni ciza kuruta igikapu c’ibimera mu bijanye no guhangana n’amavuta, guhangana n’ubushuhe no guhangana n’ugusenyuka. Muri rusangi, ubushuhe bwo gukoresha imipira y’ivyuma ni t .≤150°C, umupira kamere ni t≤60°C, kandi umupira ukoreshwa mu gukingira amavalve y’umubumbe, amavalve y’irembo, amavalve y’umubiri, amavalve y’ibinyugunyugu, amavalve yo gusuzuma, amavalve y’ugupfuka n’ayandi mavalve afise umuvuduko w’izina PN .≤1MPa.

2. Nylon

Nylon ifise ibiranga umubare muto w’ugushikana n’ubushobozi bwiza bwo guhangana n’ugusenyuka. Nylon ikoreshwa cane cane ku bikoresho vy’umupira n’ibikoresho vy’umupira bifise ubushuhe t≤90°C n'umuvuduko w'izina PN≤32MPa.

3. Polititetarafluoroetilene

PTFE ikoreshwa cane cane ku bikoresho vy’umupira, ibikoresho vy’irembo, ibikoresho vy’umupira, n’ibindi bifise ubushuhe t≤232°C n'umuvuduko w'izina PN≤6.4MPa.

4. Icuma gicuzwe

Icuma gikoreshwa mu guhingura amarembo, amavalve y’umubumbe, amavalve y’ibipfukisho, n’ibindi ku bushuhe t≤100°C, umuvuduko w'izina PN≤1.6MPa, gazi n’amavuta.

5. Icuma ca Babbitt

Babbitt alloy ikoreshwa ku nzira y'amazi y'umuyagankuba n'ubushuhe t-70 ~ 150°Cn'umuvuduko w'izina PN≤2.5MPa.

6. Umuringa

Ibikoresho bikoreshwa cane mu gukora ivyuma vy’umuringa ni umuringa w’ibiti 6-6-3 n’umuringa w’ibiti 58-2-2. Igikoresho c’umuringa gifise ubushobozi bwo guhangana n’ugusambuka kandi kirabereye amazi n’umwotsi ufise ubushuhe t≤200°Cn'umuvuduko w'izina PN≤1.6MPa. Kenshi ikoreshwa mu ma valve y'irembo, ama valve y'umubumbe, ama valve yo gusuzuma, ama valve y'ivyuma, n'ibindi.

7. Icuma kitagira ibara

Ivyuma bikoreshwa cane ni 2Cr13 na 3Cr13, vyazimye kandi birakomera, kandi bifise ubushobozi bwo guhangana n’ugusenyuka. Ikoreshwa kenshi ku bikoresho vy’amazi, ivy’umwotsi n’ivy’amavuta y’ibitoro bifise ubushuhe t≤450°Cn'umuvuduko w'izina PN≤32MPa.

8. Icuma kitagira ibara c'ibara ry'agahama

Igitigiri gikoreshwa cane c’icuma kitagira ibara c’ivyuma vyitwa chromium-nickel-titanium ni 1Cr18Ni9ti, gifise ubushobozi bwo guhangana n’ugusenyuka, ubushobozi bwo guhangana n’ugusenyuka n’ubushuhe. Ni vyiza ku mwuka n’ibindi bimenyeshamakuru bifise ubushuhe t .≤600°C n'umuvuduko w'izina PN≤6.4MPa, kandi ikoreshwa ku bikoresho vy’umupira, ibikoresho vy’umupira, n’ibindi.

9. Ivyuma bitera nitride

Igitigiri gikoreshwa cane c’icuma gikoreshwa ni 38CrMoAlA, gifise ubushobozi bwo guhangana n’ugusenyuka no guhangana n’ugukomeretswa inyuma yo gutera carburizing. Ikoreshwa kenshi mu bifunguruzo vy’amarembo y’ibikoresho vy’amashanyarazi bifise ubushuhe t≤540°Cn'umuvuduko w'izina PN≤MPa.

10. Gutera uburoni

Boronizing ikora ataco ihinduye ku ruhande rwo gukingira ivuye mu bikoresho vy’umubiri w’ivyuma canke umubiri w’idisiki, hanyuma igakora igikorwa co gutera boronizing ku ruhande. Igipande co gukingira gifise ubushobozi bwiza bwo guhangana n’ugusambuka. Kubera umuvuduko w’amashanyarazi wo gufuha.

Iyo iyo valve iriko irakoreshwa, ibintu umuntu akwiye kwitwararika ni ibi bikurikira:

1. Ubushobozi bwo gukingira bw’ivyo bikoresho bukwiye kugeragezwa kugira ngo hamenyekane ko bukora neza.

2. Suzuma nimba ikibanza co gukingira ivyuma vy’amazi cashaje, hanyuma ugisanure canke ugisubirize bivanye n’ingene bimeze.