Nkọwa na kpọmkwem nnukwu mpo nke gbasaa ụrọ

Gbasaa ụrọ - nnukwu kpo oku ihe onwunwe. Bụ a fechaa, porous chaplet ma ọ bụ àjà nsure fusible ụrọ, na-ede uri bụ Wezuga environmentally mma na mma n'ihi ụmụ mmadụ ike na gburugburu ebe obibi.

mmepụta

Mkpuchi na-adị irè, gbasaa ụrọ njupụta kwesịrị obere. Ọ bụ ike nweta site na-asụ ụfụfụ ụrọ. Nke a emee na nhazi yinye na factory:

1. The pụrụ iche nrụnye fusible ụrọ na-doro a dị ike kwes ujo. N'ihi ya, a elu porosity nke ihe onwunwe.

2. Ọzọkwa, raw porous nsogbu dị iche iche gbazee si n'èzí - ka imeta a elu ike na-eguzosi ike n'ezi mkpa iguzogide mmiri ma ike ike na-eguzogide ọgwụ chaplet ọkara.

Nka na ụzụ e ji mara nke gbasaa ụrọ bụ kpọmkwem dabere na izi ezi nke n'ichepụta n'ibu: a ọpụpụ si ụkpụrụ nke n'ichepụta ike ịkpata ezughi oke porosity na tightness, fragility mkpuchi.

Njirimara

Dị ka ọ bụla ewu ihe owuwu, gbasaa ụrọ a na-set nke e ji mara na-ekwe ka maka imewe nke ihe na-ewu. Ndị a gụnyere:

• Nnukwu na kpọmkwem njupụta.
• Mmiri na-eguzogide ọgwụ na mmiri.
• Brand ike.
• Kwes conductivity.
• Frost eguzogide.

The njupụta nke gbasaa ụrọ - bụ isi oke, nke na-ekpebi ihe ndị ọzọ nile ụkpụrụ. Na okwu a pụtara na ndị ruru nke uka ka olu mmepụta.

The n'ezie na kpọmkwem nnukwu mpo

Ibu pellet okwu banyere stof a otutu, karịsịa na thermal mkpuchi na arụmọrụ nke ihe onwunwe.

The njupụta nke gbasaa ụrọ, nakwa dị ka ọ bụla particulate ihe onwunwe ike ịbụ eziokwu na kpọmkwem (nnukwu). Ndị a kwa nwere ihe jikọrọ ma na-adabere mode nke mmepụta nke ihe onwunwe - akọrọ, mmiri, plastic na ntụ ntụ-plastic. Onye ọ bụla usoro nwere ya technology asụ ụfụfụ raw nke bụ ikpebi ihe na-ekpebi arọ uru.

The kpọmkwem njupụta nke gbasaa ụrọ - otu n'ime ihe ndị kasị mkpa e ji mara ihe. Ọ na-egosi ruru nke uka nke ahọrọ ukwu nke ihe onwunwe ya olu. Ebe ọ bụ na keramzit - nnukwu mkpuchi na a porous Ọdịdị, udi nke bọọlụ nonconstant, ikuku gaps bụ ugbu therebetween. Ya mere, n'ihi na otu olu nke kpọmkwem ihe onwunwe (nnukwu) njupụta ga ịdị iche iche.

The ezi njupụta nke gbasaa ụrọ (ihe na-akpọkarị - olu) kpebisiri ike n'okpuru laabu ma ọ bụ ulo oru na ọnọdụ na-egosi na ibu uka nke compacted ihe onwunwe na-enweghị ikuku gaps.

Ibu nta na

Mkpuchi iche n'ime iche iche dị ka size na njupụta nke gbasaa ụrọ granul.Fraktsiya metụtara inverse hà - nta chaplet, na elu ruru nke uka ka olu:

E nwere ihe ọzọ nhazi ọkwa, nke na-enye GOST 9757-90. Dị ka akwụkwọ, ihe ngọngọ ekewa akara ule dị ka ihe njupụta. Ya denoted site n'akwụkwọ ozi M sochiri a ọnụọgụ uru nke kacha njupụta maka Atiya: M250 weighs 250 kg / m ^3, ọzọ iji M600: M300, M350, M400, M450, M500.

The ruru arụmọrụ

Nnukwu njupụta nke gbasaa ụrọ na-nwere njikọ chiri na ndị ọzọ dị mkpa ihe - iru mmiri na okpomọkụ conductivity. Nke a na atụmatụ na-mgbe sonye na akaụntụ mgbe ahọpụta a ihe kwes mkpuchi ihe nke ala, uko ụlọ na mgbidi.

Ịmara nkịtị uru nke nnukwu njupụta na akụkụ dị nta nke gbasaa ụrọ, anyị nwere ike ikpebi ya mmiri ọdịnaya. Ọ bụrụ na ọ dị elu karịa kwere, na porous nsogbu dị iche iche ga-eme ga-Fikiere tupu tụkwasa na-ewu. GOST 9757-90 "ajịrịja nkume, anuahade, nkume na ájá wuru porous" achịkwakwa karịa 2% ngafe mmiri. Ntem, mgbe erikpu keramzita n'ime akaụntụ arọ nke mmiri dị na ya, mgbe ahụ, ọ na-subtracted.

The ruru nke thermal conductivity na njupụta conventionally, ma ka emee. Dị ka a maara site physics N'ezie usoro ọmụmụ, ala uru nke uka-to-olu ruru, ndị njọ ihe enịmde okpomọkụ. A na-achị na-emetụta atọpụ gbasaa ụrọ. The denser ya bụ, njọ retains okpomọkụ. Mgbe n'itinye dị otú ahụ a na ihe onwunwe ga-enyocha gbakọọ chọrọ uru nke oyi akwa nke mere na ndị na-ewu anaghị ifriizi na jụụ ikuku na-adịghị duziri.

ọzọ nkọwa

Specific ndọda adịghị emetụta ndị ọzọ nke arụmọrụ, ma ọ dị mkpa na-ekwu okwu banyere ha.

Anwụ ngwa ngwa gbasaa ụrọ nsogbu dị iche iche enweta ke mmepụta ogbo mgbe nke abụọ ogbo - reflowing. Ya size kpebisiri ike site laabu ule site mkpakọ nke nsogbu dị iche iche na cylinder. Ọ ga-kwuru na usoro nwere ịrịba drawback: tụrụ ike na-adabere na ọka udi na nkesa nke pores nime ya. Iji nweta dịtụ ọmụma a pụrụ ịdabere, a na-anwale ruo 10 bọọlụ si otu mmepụta ogbe nke ihe onwunwe. Haydite ike mgbanwe dị n'ime 0.3 ... 6.0 MN / m ^2, nke bụ a-egosi, ya mere, ihe na-kwukwara ka dịanyā na ihe.

The thermal conductivity nke nnukwu-egbochi ihe onwunwe bụ na nkezi 0,08 ... 0,12 W / m * K, nke bụ 8-10 ugboro elu karịa nke efere omenala heaters. O sina dị, ngwa nke ihe nwere ike ịchọpụta na-ebikwasị a ezu ọkpụrụkpụ nke-egbochi ihe oyi akwa.

Frost eguzogide gbasaa ụrọ kwesịrị dịkarịa ala 15 full cycles. N'èzí owuwu (mgbidi, uko ụlọ nke mbụ n'ala), ọ bụ ihe amamihe họrọ ruo 50 cycles.

Water absorption na mkpuchi kwesịrị ekwesị mere fọrọ nke nta efu n'ihi na tightness nke ụlọ n'ihi re-sintering na pellets. Ọ bụrụ na mmiri ga-amịkọrọ n'ime nsogbu dị iche iche, ihe ga-akwụsị ọrụ ma ga-amalite ịdakpọsị. Ya mere GOST 9757-90 ezipụta a kacha fọrọ nke 10-25% site na ibu dabere na oyi akwa ọkpụrụkpụ.

Iji soro niile technical egosi bụ ha akara na mmepụta ogbo. Mgbe ụgbọ njem na mkpuchi ga-echekwara na ala iru mmiri ọnọdụ enweghị ọzọ na-ebibi gburugburu ebe obibi mmetụta. Ọ dị mkpa inye mmasị na mechiri emechi ego na hangars.

Gbasaa ụrọ bụghị egwu ebu, òké na ndị ọzọ na ndu pests, n'ihi na ya iji bụ kpamkpam mma na mechiri emechi owuwu.