Gịnị bụ plywood?
Enwere ike kewaa plywood n'ime plywood dị nro (masson pine, larch, pine pine, wdg) na plywood siri ike (osisi bass, birch, ash, wdg).
Site n'echiche nke nguzogide mmiri, plywood nwere ike kewaa ụzọ anọ:
Klas I - plywood na-eguzogide ihu igwe na mmiri esi mmiri (WBP), na-eji nrapado resin phenolic.Kwesịrị ekwesị maka mpaghara dị n'èzí dị ka ụgbọ elu, ụgbọ mmiri, ụgbọ ala, nkwakọ ngwaahịa, ihe nrụpụta ihe, hydraulic engineering, na ebe ndị ọzọ nwere ezigbo mmiri na-eguzogide na ihu igwe.
Klas II mmiri na-eguzogide plywood (MR), nke nwere ike imikpu mmiri oyi dị mkpụmkpụ, dabara adaba maka ime ụlọ n'okpuru ọnọdụ nkịtị.Emere ya site na ijikọ ọdịnaya resin dị ala urea formaldehyde resin ma ọ bụ nrapado ndị ọzọ nwere ihe hakọrọ.Ejiri ya maka arịa ụlọ, nkwakọ ngwaahịa na ihe owuwu n'ozuzu ebumnuche ụlọ.
Klas III mmiri na-eguzogide plywood (WR), nke nwere ike ịtinye na mmiri oyi, nwere ike idi obere oge nke mmiri ọkụ na-emikpu, ma nwee ihe ndị na-egbu egbu, ma ọ dịghị eguzogide esi.Emere ya nke urea formaldehyde resin ma ọ bụ nrapado ndị ọzọ nwere ihe ndị yiri ya.A na-eji maka ịchọ mma ime na nkwakọba ihe ụgbọ mmiri, ụgbọ mmiri, arịa ụlọ, na ụlọ.
Klas IV enweghị mmiri na-eguzogide plywood (INT), eji n'ime ụlọ n'okpuru ọnọdụ nkịtị, nwere ụfọdụ ike njikọ.Emere ya site na ijikọ ya na gluu agwa ma ọ bụ ihe nrapado ndị ọzọ nwere ihe ha nhata.A na-ejikarị maka nkwakọ ngwaahịa na ebumnuche izugbe.Ekwesịrị iji plywood agwa mee igbe tii
The plywood eji maka ihe formwork film chere ihu plywood bụ nke Class I plywood na elu ihu igwe na mmiri na-eguzogide, na nrapado bụ Phenolic resin adhesive bụ tumadi esichara si poplar, birch, pine, eucalyptus wdg.
1. Ihe nkiri chere ihu plywood nhazi na nkọwapụta
(1)Nhazi
A na-ejikarị plywood osisi a na-eji arụ ọrụ arụ ọrụ nke ọma dịka 5, 7, 9, na 11, nke a na-ejikọta ma gwọọ ya site na ịpị ọkụ.
Ụdị.Ntuziaka ederede nke n'akụkụ n'akụkụ na-adabere na ibe ya, na-abụkarị ntụziaka ederede nke elu elu elu na-ejikọta na ogologo ntụziaka nke elu plywood.Ya mere, ogologo ntụziaka nke plywood dum dị ike, na ntụziaka dị mkpirikpi adịghị ike.A ghaghị ịṅa ntị mgbe ị na-eji ya.
(2) Nkọwapụta
Nkọwa na akụkụ nke ihe nkiri chere ihu plywood maka formwork
Ọkpụrụkpụ (mm) | N'ígwé ojii | Obosara (mm) | Ogologo (mm) |
12 | Opekempe 5 | 915 | 1830 |
15 |
Opekempe 7 | 1220 | 1830 |
18 | 915 | 2135 | |
1220 | 2440 |
2. Ihe nkiri chere ihu plywood bna-akwado arụmọrụ na ibu ikike
(1) Ịrụ ọrụ nkekọ
Ihe nrapado maka plywood eji na ihe nkiri chere ihu plywood mmiri bụ tumadi phenolic resin.Nke a na ụdị nrapado nwere elu bonding ike na mmiri na-eguzogide, magburu onwe okpomọkụ na corrosion iguzogide, na pụtara ìhè esi mmiri na-eguzogide na anwụ ngwa ngwa.
Uru Index Ike Bond maka Ihe nkiri chere ihu na Plywood mmiri
Ụdị osisi dị iche iche | Ike Bond (N/mm2) |
Birch | ≧1.0 |
Apitong(Keruring),Pinus Massoniana Nwa Atụrụ, | ≧0.8 |
Lauan, poplar | ≧0.7 |
Mgbe ị na-azụta plywood maka ihe eji arụ ọrụ, ị ga-ebu ụzọ lelee ma ọ bụ nke klas I plywood,
Lelee ma ogbe plywood ejirila nrapado resin phenolic ma ọ bụ nrapado ndị ọzọ nwere ihe ha nhata.Ọ bụrụ na a nwalere mgbe ọnọdụ ndị dị oke na enweghị ike ịme ule ike njikọ, obere mpempe nwere ike ịdị ngwa ngwa na naanị site na mmiri esi mmiri.
Jiri obere mpempe 20mm square sawn sitere na plywood wee sie n'ime mmiri esi mmiri maka awa 2.Iji resin phenolic dị ka mpempe ule agaghị apụpụ mgbe esichara nri, ebe mpempe ule na-eji pulse formaldehyde resin dị ka nrapado ga-apụ apụ mgbe esichara.
(2) Ikike ibu
Ikike ibu nke plywood osisi nwere njikọ na ọkpụrụkpụ ya, ike na-ehulata kwụ ọtọ, na modulus na-agbanwe.
Ụdị osisi dị iche iche | Modulus of Elasticity (N/mm2) | MOR (N/mm2) |
Lauan | 3500 | 25 |
Masson pine, larch | 4000 | 30 |
Birch | 4500 | 35 |
Ụkpụrụ ọkọlọtọ nke ike ịgbagọ static na mgbanwe modul nke shuttering plywood (N/mm2)
Ọkpụrụkpụ (mm) | MOR | Modul nke Elasticity | ||
Ntụziaka kwụ ọtọ | Ntuziaka kwụ ọtọ | Ntụziaka kwụ ọtọ | Ntuziaka kwụ ọtọ | |
12 | ≧25.0 | ≧16.0 | 8500 | ≧4500 |
15 | ≧23.0 | ≧15.0 | 7500 | ≧5000 |
18 | ≧20.0 | ≧15.0 | ≧6500 | ≧5200 |
21 | ≧19.0 | ≧15.0 | ≧6000 | ≧5400 |
Ụlọ cpncrete shuttering plywood nwere ike kewaa n'ime nkịtị shuttering plywood na ihe nkiri chere ihu plywood.
Na larịị shuttering plywood elu na-emeso ya na phenolic resin na ike waterproofing. Mgbe agbapụtara ihe components na-eji larịị shuttering plywood dị ka arch àkwà mmiri, ibé, na ogidi, ọ bụ naanị ọkọlọtọ stiffness na integers kwesịrị izute, na mgbe ahụ isi awọ mma ga-etinyere n'ọrụ. elu.A na-ejikarị eme ihe na ụlọ ọrụ obodo na nke izugbe.
Ihe nkiri chere ihu plywood mmiri na-etolite site na ikpuchi akwa akwa nke akwụkwọ laminnation na osisi artificial dị mma .N'elu ihe nkiri ahụ chere ihu plywood dị mma, na-egbuke egbuke, na-ekpuchi mmiri, na ọkụ ọkụ, na-adịgide adịgide dị mma (mgbochi ihu igwe, nkwụsị nke corrosion, nguzogide kemịkalụ) na ike mgbochi mmetọ ike.
Gịnị kpatara yaihe nkiri chere ihu plywooddị oke ọnụ tụnyere ndị nkịtịplywood na-emechi emechiformwork?
1. Akwụkwọ ọla kọpa na-ebubata bụ nke laminated na plywood nwere njirimara nke ịdị nro dị elu, ịdị mma dị mma, na nkwụsịtụ dị mfe.Mgbe a kwatuchara, elu nke konkịtị dị mma, na-ezere eserese nke abụọ, na-ebelata ọnụ ahịa, na-ebelata oge ihe owuwu.A na-eji ya dị obere arọ, mbelata siri ike, ịrụ ọrụ nke ọma na ịrụ ọrụ ngwa ngwa.
2. Ihe nkiri a na-eche ihu plywood bụ ihe dị elu na-ekpo ọkụ na ihe mgbagwoju anya, nke dị oke, ike dị elu, ma nwee ezigbo ike.Ike na-ehulata static karịrị okpukpu abụọ nke osisi.
3.) Mmiri siri ike.N'oge mmepụta, a na-eji akwa akwa nke resin phenolic maka otu oyi akwa nke ịkpụzi ọkụ ọkụ na-enweghị esi gluu maka awa 5, na-eme ka o sie ike ịmegharị panel ahụ n'oge mmezi ihe.
4.) The thermal conductivity dị nnọọ nta karịa nke ígwè ebu, nke bara uru maka elu okpomọkụ na okpomọkụ na oyi ewu.
5. Ọnụ ọgụgụ ntụgharị dị elu karịa nke plywood n'ozuzu, na ọnụ ọgụgụ ntụgharị n'ozuzu nwere ike iru ugboro 12-18.
6.) Nguzogide corrosion: adịghị emerụ ihe dị n'elu.
7.) Lightweight: More mfe eji maka elu-ịrị elu ụlọ na àkwà mmiri na-ewu.
8.) Ịrụ ọrụ nke ọma: Arụ ọrụ nke mbọ, nkwọ, na ịkụ ala dị mma karịa nke plywood bamboo na obere efere ígwè.Enwere ike ịhazi ya n'ụdị dị iche iche nke ndebiri dịka mkpa ihe owuwu si dị.
9.) Nnukwu usoro: Usoro kachasị bụ 2440 * 1220 na 915 * 1830mm, na-ebelata ọnụ ọgụgụ nke nkwonkwo ma melite arụmọrụ nke nkwado formwork.Enweghị mgbawa, enweghị nrụrụ, enweghị mgbawa.
10).
11.) Lightweight ihe, 18mm ọkpụrụkpụ film chere ihu plywood, na a unit arọ nke 50kg mfe ibufe, tojupụtara na-eji.
Olee otú ikpe àgwà nke film chere ihu plywood?
Mbụ, lelee udidi na agba nke template.Ụdị ihe nkiri chere ihu plywood na-abụkarị mgbe niile, mara mma, na mmesapụ aka.
N'ụzọ megidere nke ahụ, ihe nkiri chere ihu plywood na-adịghị mma àgwà nwere aghara textures.Mgbe ị na-ezute ihe nkiri chere ihu plywood nwere agba gbara ọchịchịrị na akwa agba, ọ ga-ekwe omume na onye nrụpụta ahụ kpachaara anya kpuchie ntụpọ elu nke plywood ahụ.
Nke abuo, jiri usoro nke steepụ chọpụta ma ike ahụ ezuola.Anyị nwere ike họrọ enweghị usoro họrọ ihe nkiri chere ihu mmiri plywood.Ndị mmadụ nwere ike iguzo na ya ma kwụpụ na ya.Ọ bụrụ na ụda mgbawa pụtara nke ukwuu, ọ na-egosi na àgwà adịghị mma.Na-esote, belata ya n'ụdị mpempe osisi ma nyochaa mmejọ ya na isi oghere.Ọ bụrụ na enwere mmejọ ma ọ bụ nnukwu ebe isi efu, ihe nkiri ahụ chere plywood ihu ga-enwe mkpụkọ, mgbawa, na ihe ndị ọzọ.
N'ikpeazụ, anyị nwekwara ike sie na sawn ụlọ formwork n'ụdị osisi ibe na mmiri iji lelee ma ọ bonding ike ruru eru.Debe ihe nlele ahụ na mmiri esi mmiri maka awa abụọ iji nwalee ike njikọ nke ihe nkiri ahụ chere plywood ihu.Nke a bụ iji megharịa ma template ụlọ agbawara ka ejiri oge 2-3 mee ihe.Ọ bụrụ na e nwere ihe ịrịba ama nke mgbawa, ọ na-egosi na àgwà ya adịghị elu na mmetụta mgbochi mmiri ya adịghị mma.Enwere ike ịsị na ihe nkiri a na-ahụ maka ihe owuwu ihe na-eche ihu bụ isi mmalite nke ọrụ ihe owuwu anyị, na ịdị mma nke ihe nkiri chere ihu nwere njikọ chiri anya na ịdị irè nke ọrụ owuwu anyị.
Oge nzipu: Sep-07-2023