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He pehea te hanga plywood? He aha te plywood?

Te wa: 2022-07-18 Hits: 13

Plywood is a typical artificial board. It is called plywood abroad, also called multi-layer board. It has a typical odd-numbered layered structure. Each layer is superimposed perpendicular to each other.

This unique processing method creates structures that balance strength, stability and economy. Plywood does not constantly shrink and expand, deforming like solid wood. Plywood is generally from 3 to 17 layers. Generally speaking, the more layers of the same material, the better the plywood.

The quality of plywood depends on the material. Some are cork, such as pine, poplar, etc. The price of hardwood is higher than that of cork. There are also positive and negative differences between plywood, and the front is generally measured according to flatness and smoothness. There is also a side view of whether the layers are symmetrical, flat, and whether there are holes.

Plywood is a board that woodworking enthusiasts like very much, especially high-grade imported boards, which are called marine boards in the industry. In fact, in recent years, the production process of domestic plywood has been greatly improved, and the processed plywood is no worse than imported plywood, whether it is environmental protection or quality. aspect. The formaldehyde content of the glue used has reached and exceeded the European standard

How to make plywood?
Plywood making Plywood processing technology:

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Hangarau tukatuka Plywood:

I roto i te tukanga whakaputa, te tapahi rakau, te tihorea, te whakamaroke, te whakahaere, te perehi wera, te tapahi taha, te kirikiri ka pa ki te moumou. Ko te moumou ko te toenga o te tukatuka (materiality) me te mimiti haere (imateriality). Ko te maumau rakau e pa ana ki nga rawa, te tohu o te rakau, te kaha o nga taputapu, te hangarau me te whakaritenga whakangao.

1) Te whakakore i te rangitaki:

Kaituku rangitaki:

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I te nuinga o te waa, neke atu i te 6 mita te roa o te raarangi kawemai. Ko te tapahi i runga i te hangarau e hiahiatia ana te roa me te kounga. Ko te roa o te tapahi kia rite ki te roa o nga hua taapiri. Hei tauira, hua ko 1220mm * 2440mm, tapahi roa te tikanga kia 2600mm 1300mm ranei. Ko te roa o te rakau, te camber me te kino ka pa ki te whakaputanga plywood. Ko nga toenga he wahi rakau ririki, he tapahi, he otaota, he hangarau. Ko te 3%-10% te ōwehenga moumou tapahi rangitaki.

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2) Tihorenga whakakikorua:

Ko te tihorenga te tikanga hanga plywood tino rongonui. Ko te matotoru o te tuara he 0.6mm, he 1.8mm te matotoru o te papanga matua me te matotoru.

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3) whakamaroke:

He makuku te whakakikorua. me whakamaroke kia rite ki te whakaritenga hangarau. I muri i te whakamaroke, ka mimiti. Ka iti ake te rahi. Ka iti haere te roa, te whanui, te matotoru. E pa ana ki nga rawa rakau, te makuku, te matotoru o te whakakikorua. Ko te 4%-10% te whakahekenga moumou.

1.Steel Tube drying (The most economic type dryer,but capacity is less)

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2.Solid hot platen press drier ( If your board is not flat you can choose hot platen solid press dryer.)

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3.Core Veneer Continuous roller dryer ( If your capacity is bigger than 50cbm per day, you can choose roller dryer. )

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4) Te whakahaere whakakikorua:

Ko te mahi ko te tapahi, te whakakotahi me te whakatikatika. Tapahia te whakakikorua o te rohe ki te whakakikoruatanga, te rahi ranei ka taea te whakakotahi. Ka taea te whakahiatotia te whakakikorua roherohe ki roto i te raima kotahi. Ka taea te whakatika i te whakakikorua kia whai tohu. Te moumou i roto i tenei waahanga e pa ana ki nga rawa rakau, te kounga tihorea, te kounga maroke, me nga pukenga mahi a nga kaimahi. Ko te ōwehenga moumou he 4%-16%. Ko te 2%-11%.

Raina whakahiato whakakikoruatia, whakahiato ringa ranei

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5) Perehi Matao:

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Ko te pehi makariri te miihini taketake mo te tipu plywood. Ka kiia hoki tenei miihini i mua i te perehi. Ko te whakakikorua i muri i te whakapiri me te huihui, tuatahi ka hangahia ki roto ki te panui tuwhera ma te peera makariri. Na ka whakawhitia e te marau ki te perehi wera.

6) Perehi wera:

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Whakapirihia te whakakikorua, ka whakaemihia, ka whakapiri i raro i te pāmahana me te pehanga ma te perehi wera. I te mea he rereke te pāmahana me te makuku kei roto, ka mimiti te whakakikorua. E pa ana ki te whakamahana, te pehanga, te wa perehi wera, te rakau rakau, te makuku kei roto, ko te 3%-8% te ōwehenga moumou.

7) Te whakapai taha:

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Te kuti i te taha o te taha o te papapa mai i te pere wera ki te papa whaariki whai mana. Ko nga toenga e pa ana ki nga toenga tukanga me te rahi o nga hua. He nui ake te whakaputa, he iti ake te moumou. Ko te ōwehenga moumou he 6%-9%

8) Te kirikiri

Te kirikiri i te mata plywood kia pai ai. He paura te moumou. He pai te kounga o te raima, he iti ake te kirikiri. Ko te ōwehenga moumou he 2%-6%

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9) Whare Putunga:

Ko te plywood kei te takai i roto i te palletize ranei i roto i te nuinga

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(10) Laminating with veneer, melamine paper, membrane paper etc.

Nga hua plywood kua oti

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Piko: Te tātari matapae: 2022 Te mana whanaketanga o te ahumahi me te ahua whanaketanga o Haina

Tō muri mai: He aha te plywood i paheke ai?

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