Nhoroondo yekuvandudzwa kwemahofori muindasitiri yezvigadzirwa zvegirazi

(1) Mitswe ndiyo inonyanya kukanganisa mabhodhoro egirazi. Kutsemuka kwacho kwakanaka kwazvo, uye kumwe kunowanikwa chete muchiedza chakaratidzwa. Zvikamu zvinowanzoitika muromo webhodhoro, bhodhoro nepfudzi, uye muviri webhodhoro uye pasi zvinowanzove nekutsemuka.

(2) Ukobvu husina kuenzana Izvi zvinoreva kugoverwa kusina kuenzana kwegirazi pabhodhoro regirazi. Inonyanya kukonzerwa nekushisa kusina kuenzana kwemadonhwe egirazi. Iyo yepamusoro tembiricha chikamu chine yakaderera viscosity, uye kuvhuvhuta kudzvinyirira hakuna kukwana, izvo zviri nyore kuvhuvhuta mutete, zvichikonzera kusaenzana kwezvinhu kugoverwa; iyo yakaderera tembiricha chikamu chine kupikisa kwakanyanya uye yakakura. Kupisa kwe mold hakuna kuenzana. Girazi riri padivi rekushisa kwepamusoro rinotonhora zvishoma nezvishoma uye riri nyore kuvhuvhuta rakatetepa. Rutivi rwetembiricha yakaderera runofuridzwa gobvu nekuti girazi rinotonhora nekukurumidza.

(3) Deformation Tembiricha yekudonha uye tembiricha yekushanda yakakwira zvakanyanya. Bhodhoro rakabviswa kubva pakugadzira mold harisati ranyatsogadzirwa uye rinowanzoputsika uye rinokanganisa. Dzimwe nguva pasi pebhodhoro ichiri kupfava uye ichadhindwa nemaitiro ebhandi rekutakura, zvichiita kuti pasi pebhodhoro risaenzane.

(4) Tembiricha yekudonha isina kukwana yakadzikira kana kuti mold inotonhora zvakanyanya, izvo zvinozoita kuti muromo, pfudzi uye zvimwe zvikamu zviputirwe zvisina kukwana, zvichikonzera mikaha, mapendekete akanyura uye maitiro asina kujeka.

(5) Mavara anotonhora Zvigamba zvisina kuenzana pamusoro pegirazi zvinodaidzwa kutonhora. Chikonzero chikuru chechikanganiso ichi ndechekuti tembiricha yemuenzaniso inotonhora zvakanyanya, izvo zvinowanzoitika kana uchitanga kugadzira kana kumisa muchina wekugadzira zvakare.

(6) Protrusions Kukanganisa kwemutsara weseam webhodhoro regirazi rinobuda kana mupendero wemuromo uchibuda kunze. Izvi zvinokonzerwa nekugadzirwa kusina kunaka kwezvikamu zvemuenzaniso kana kuiswa kusina kukodzera. Kana iyo modhi ikakuvadzwa, pane tsvina pane seam pamusoro, iyo yepamusoro yepakati inosimudzwa yanonoka uye iyo girazi zvinhu inowira mune yekutanga mold isati yapinda munzvimbo, chikamu chegirazi chinotsikirirwa kunze kana kupeperetswa kubva pagomba.

(7) Makwinya ane zvimiro zvakasiyana-siyana, mamwe mapete, uye mamwe mapete akatsetseka mumapepa. Zvikonzero zvikuru zvemakwinya ndezvekuti iyo inodonha inotonhora zvakanyanya, iyo inodonha yakarebesa, uye iyo inodonha haina kuwira pakati pekutanga mold asi inonamatira kumadziro emold cavity.

(8) Kuremara kwepamusoro Nzvimbo yebhodhoro ine hutsinye uye haina kuenzana, kunyanya nekuda kweiyo rough surface ye mold cavity. Tsvina yekuzora mafuta mu mold kana tsvina bhurashi inozodzikisawo kunaka kwebhodhoro.

(9) Mabhavhu Mabhuru anogadzirwa panguva yekuumba anowanzo mabhuru makuru akati wandei kana akati wandei madiki mabhuru akaungana pamwechete, ayo akasiyana nemabhuru madiki akagoverwa zvakaenzana mugirazi pacharo.

10 Donhwe rezvinhu rinowanzova nemakasi maviri echigero. Mucherechedzo wepamusoro wechigero unosara pasi, uchikanganisa chitarisiko. Chigero chezasi chinosara pamuromo webhodhoro, iro rinowanzoita kuti pave nekutsemuka.

(11) Infusibles: Zvinhu zvisiri zvegirazi zviri mugirazi zvinonzi infusibles.

1. Semuenzaniso, silica isina kunyungudutswa inoshandurwa kuita chena silica mushure mekupfuura nemujekerere.

2. Refractory zvidhinha mubatch kana cullet, senge fireclay uye yakakwirira Al2O3 zvidhinha.

3. Raw zvinhu zvine infusible tsvina, zvakadai FeCr2O4.

4. Refractory zvinhu muchoto panguva yekunyunguduka, senge peeling uye kukukurwa.

5. Devitrification yegirazi.

6. Kukukurwa nekudonha kweAZS electroformed zvidhinha.

(12) Tambo: Inhomogeneity yegirazi.

1. Nzvimbo imwechete, asi nekusiyana kukuru kwekuumbwa, inokonzera mbabvu mukugadzirwa kwegirazi.

2. Kwete chete tembiricha haina kuenzana; girazi rinokurumidza uye risina kutonhora kutonhora kwekushanda, kusanganisa girazi rinopisa uye rinotonhora, rinokanganisa nzvimbo yekugadzira.


Nguva yekutumira: Nov-26-2024