Maitiro ekutsvaira uye kupfuudza inodzivirira mamiriro mukati Vacuum mhepo choto

Mune yakanyanya-tembiricha yekupisa yekurapa maitiro, mamwe maworkpieces anofanirwa kuvharwa uye kupfuudza inodzivirira mamiriro ekuita zviedzo, zvino maitiro aya anofanirwa kushandisa vacuum atmosphere vira. Asi unoziva here kuti choto chemuchadenga chinobviswa sei uye mhepo inofefetera? Rega ndikuudze zvinotevera:

1. Vacuuming. Vacuuming inogona kukamurwa kuita yakaderera vacuum uye yakakwirira vacuum. Iwo chaiwo maitiro ndeaya anotevera:

1. Low vacuum: vhara mavharuvhu ose zvakasimba, tanga iyo mechanical pombi, mirira kuti iite zvakanaka (inenge 1-2min), vhura iyo yakaderera vacuum valve inoenda kuchoto chemuviri wevacuum atmosphere furnace, iyo yekumusoro disc. vharafu, uye gadzirisa muviri wechoto pamberi peLow vacuum.

2. High vacuum: Vhura dhisiki rezasi uye pombi pombi yekuparadzira. Kana vacuum yasvika 15 Pa kana zvishoma, batidza pombi yekuparadzira yekupisa. Kazhinji, mushure memaminitsi makumi mana neshanu, pombi yekuparadzira inotanga basa rayo, uye ipapo iyo yekumusoro disc valve inogona kuvharwa. Panguva imwecheteyo, vhura iyo huru yevhavhavhavha uye umirire kusvika dhigirii yevacuum yasarudzwa kusvika 45 × 1.33 kune -10 simba Pa kana kupfuura, ipapo bhatani rekudziya rinogona kuvhurwa kuti ridziye sampuli. Iyo vacuum gauge ine mitsara miviri, yakaderera vacuum renji 1 × 1.0 kune yechishanu simba -10 × 5 kune -1.0 simba; high vacuum range 10 × 1 kune -1.0 simba kusvika 10 × 1 kune -1.0 simba, general Tanga kushandura mararamiro pa 10Pa. Ziva kuti vacuum gauge switch inofanirwa kudzimwa isati yazadza mhepo kudzivirira iyo vacuum gauge kubva mukuchembera.

Paunenge uchipomha pombi, ndapota tarisa kuti iyo yepamusoro disve yekuvharirwa uye iyo huru yakavharika yevharanda yevacuum mamiriro ekunze haigone kuvhurwa panguva imwe chete.

Chechipiri, kuburikidza nemhepo inodzivirira

1. Vhura iyo yepamusoro gasi nzira yekudzora valve uye ita bhatani museve unongedze kune “yakavhurika” chinzvimbo.

2. Gadzirisa bhandi rekuyerera kuti riite kuverenga pa20ml/min.

3. Vhura vharuvhu yemhepo yevacuum atmosphere furnace kusvikira barometer yaverenga zero. Uye vhura iyo yekubuda valve pane inodzivirira mamiriro gasi nzira.

Mugadziri wevacuum atmosphere furnace anoyeuchidza kuti vacuum atmosphere vira inogona kupisa chete mushure mekunge mhepo yekudzivirira yapfuura kwemaminitsi gumi.