Isuzuma ry'imigozi ikoreshwa mu gupima imiyoboro ya Ductile Iron na SML hakurikijwe EN10002-1

Gupima ibikoresho by'icyuma bikozwe mu buryo bwa "tensile" ni uburyo bw'ingenzi bwo gusuzuma imiterere yabyo kandi bifite akamaro kanini. Mu gupima ibipimo nk'imbaraga zo gukurura, imbaraga z'umusaruro, no kurekura, bipima ubushobozi bw'ibikoresho byo gutwara imizigo n'imiterere ya pulasitiki. Bitanga ishingiro ry'umutekano mu gushushanya imiterere y'ubuhanga kandi bikerekana ko imiterere y'ibikoresho ari ingenzi. Binakora nk'igikoresho cy'ingenzi cyo kugenzura ubuziranenge, kikagenzura ko inzira zo gukora zihamye kandi kikagenzura ko zubahirizwa ku mahame mpuzamahanga. Byongeye kandi, bishobora guhanura ibyago byo kwangirika kw'ibikoresho mu gihe cy'imizigo igoye no gutanga inkunga y'amakuru y'ingenzi mu guteza imbere ibikoresho bishya.

Ibi bikurikira ni ukugereranya uburyo bwo gupima imbaraga zo gukururaimiyoboro y'icyuma ikoresha ductilenaImiyoboro ya SML, byombi bifasha kwemeza ko ibicuruzwa bifite ireme kandi bikoreshwa igihe kirekire mu bintu bitandukanye bifatika.

1. Ingero z'impinduka
Ubunini n'umurambararo w'inkoni yo gupima by'ingero z'icyuma gikozwe mu buryo bwa ductile ni ibi bikurikira:

Icyitonderwa: Agakoresho k'igerageza kakozwe mu gipimo cyakozwe mu mashini, kagaragaza icyuma kiri hagati mu bugari bw'ingero. Karimo igice cy'uruziga. Umurambararo w'uruziga ugaragara mu mbonerahamwe iri hejuru. Uburebure bw'agakoresho k'igerageza ni nibura inshuro 5 z'umurambararo wako. Impera y'agakoresho k'igerageza igomba kuba ikwiriye gushyirwa mu gikoresho cy'imashini igerageza. Ubuso bw'agace k'uruziga k'agakoresho k'igerageza ni Rz ≤ 6.3.

Umuyoboro wa SML ukozwe mu cyuma cy'ivu kandi icyitegererezo cyawo kigomba kuba gihuye n'ishusho ikurikira:

Icyitonderwa: Kugira ngo haboneke ibisubizo by'ikizamini bigaragaza neza umusaruro urangiye uko bishoboka kose, icyitegererezo cy'ikizamini kigomba gukurwa mu muyoboro wa SML cyangwa mu gikoresho cya SML hanyuma kigacibwa gihuye n'umurongo w'umuyoboro cyangwa igikoresho. Agace k'ibanze k'igipimo kagomba gupimwa. Ubugari n'ubugari bw'igice cy'ikizamini bigomba gupimwa neza kugeza kuri 0.1mm mbere yo gupimwa.

2. Itandukaniro mu igeragezwa

Nubwo ibizamini byombi byo gukurura bikorerwa hakoreshejwe imashini ipima gukurura ikoresheje uburyo bwose, ibikoresho bikoreshwa biratandukanye.Igikoresho cyo gupima icyuma gikozwe mu buryo bwa ductile kiragaragara hano hasi:

Umuyoboro wa SML n'igikoresho cyo gupima umugozi gishyirwamo biragaragara hano hasi:

3. Itandukaniro riri hagati y'ibyavuye mu isuzuma n'imiterere y'ibikoresho
Uburyo bwo gushongesha no gukora icyuma gishongesha ni umusaruro w’imyaka myinshi y’ikoranabuhanga n’umurava mu kazi. Isosiyete yacu ikora imiyoboro y’icyuma ishongesha neza, ifite igipimo cya spheroidization cya 90% cyangwa kirenga. Gupima icyuma gishongesha bigaragaza imbaraga zo gushongesha hagati ya 460MPa na 490MPa, n’uburebure buri hagati ya 10% na 17%. Dukurikije ibipimo ngenderwaho bya EN545 na ISO2531, imbaraga zo gushongesha za 420MPa cyangwa zirenga n’uburebure buri hagati ya 5% na 10% cyangwa kirenga bifatwa nk'ibyemewe. Imbaraga n’uburebure busanzwe bwo gushongesha ni ibi bikurikira:

Imiyoboro ya SML n'ibikoresho byayo bikozwe mu cyuma cy'umukara. Imiterere ya grafiti iri mu cyuma cy'umukara ifata amazi, bigatuma urusaku rw'amazi rugabanuka nibura 10dB ugereranije n'imiyoboro ya PVC. Itanga kandi ubushobozi bwo kurwanya ubushyuhe bwinshi, burenga 1.000°C. Impeta za rubber zifunga ziguma zikora neza nubwo zaba ziri kuri 70°C zikomeza cyangwa 120°C zisohoka rimwe na rimwe, aho ubushyuhe buhinduka kimwe cya karindwi cy'imiyoboro ya PVC. Itanga kandi imbaraga nziza zo gukurura, kurwanya ingaruka, no kurwanya kwangirika, nibura inshuro eshanu z'imiyoboro ya PVC.

Dukurikije ibipimo ngenderwaho bya EN877, imiterere ya mekanike y'imiyoboro ya SML n'ibikoresho byayo ni ibi bikurikira:

Imiyoboro ya SML n'ibikoresho byayo, imiyoboro ya PVC, ikizamini cyo gukurura imiyoboro ya SML ya EN877, igipimo cya SML, imiyoboro y'icyuma ya EN545 ISO2531 n'imiyoboro ya SML, ingero z'icyuma cya ductile, umuyoboro wa SML, umuyoboro w'icyuma cya grey,