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How is plywood made? What is plywood?

Ixesha: 2022-07-18 Indawo: 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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Itekhnoloji yokulungisa iPlywood:

Kwinkqubo yokuvelisa, ukusika ilogi, ukuhluma, ukomisa, ukuphatha, ukucinezela okutshisayo, ukunqumla i-edge, ukuchithwa kwesanti kuchaphazela inkunkuma. Inkunkuma yintsalela yokusetyenzwa (izinto eziphathekayo) kunye nokucutheka (ukungabonakali). Inkcitho yokhuni inxulumene nemathiriyeli, ukucaciswa kwelogi, amandla esixhobo, itekhnoloji kunye nokucaciswa kwemveliso.

1) Ukususwa kwelog:

Log debarker:

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Ngokwesiqhelo ubude belogi yokungenisa ingaphezulu kwe-6 yeemitha. Ukusika ngokobuchwephesha obufunekayo ubude kunye nomgangatho. Ubude bokusika kufuneka bube ubude bemveliso yongeza iintsalela. Ngokomzekelo, imveliso yi-1220mm * 2440mm, ubude bokusika ngokuqhelekileyo bube yi-2600mm okanye i-1300mm. ubude belog, i-camber kunye ne-demerit ichaphazela imveliso yeplywood ngokuthe ngqo. Iintsalela ngamaqhekeza amancinci amaplanga, i-truncations, i-sawdust, i-tec. Log ukusika inkunkuma ratio yi-3% -10%.

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2) Ukucoca iVeneer:

I-peeling yeyona nkqubo idumileyo yokuvelisa i-plywood. Ubukhulu beveneer yangasemva bumalunga ne-0.6mm, i-core veneer kunye ne-central veneer thick malunga ne-1.8mm.

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3) Ukomisa:

IVeneer ifumile. kufuneka yomiswe ngokwemfuno yeteknoloji. Emva kokumisa, kuya kuncipha. Umlinganiselo uya kuba mncinci. Ubude beVeneer, ububanzi, ubukhulu buya kuncipha. I-Shrink inkunkuma inxulumene nezinto zokhuni, ukufuma okuqulethe, ubukhulu be-veneer. Inkcitho yokucutheka yi-4% -10%.

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) Ukuphathwa kweVeneer:

Ukuphatha kubandakanya ukusika, ukubeka i-veneer kunye nokulungisa. Sika i-zonal veneer kwi-specification veneer okanye ubungakanani obufanelekileyo obunokudityaniswa. I-zonal veneer emxinwa inokudityaniswa ibe yi-veneer enye. I-Veneer ene-demerit inokulungiswa ukuze ifaneleke. Inkcitho kule ndawo inxulumene nemathiriyeli yelog, umgangatho weveneer exotshiweyo, umgangatho owomileyo, kunye nobuchule bokusebenza komsebenzi. Umlinganiselo wenkcitho yi-4% -16%. Umyinge wokumoshwa kwenkunkuma ye-veneer processing plywood yi-2% -11%.

I-Veneer idibanisa umgca okanye ukudibanisa izandla

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5) Ushicilelo olubandayo:

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Ukucinezela okubandayo umatshini osisiseko wesityalo seplywood. Lo matshini ukwabizwa ngokuba yi-pre-press. I-veneer emva kokuba iglue kwaye idityaniswe, okokuqala iya kusekwa kwi-pan engenanto yi-cold press. Emva koko iya kuhanjiswa ngeforklift kumshicileli oshushu.

6) Ukucofa okushushu:

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I-Veneer idityaniswe kwaye ifakwe, emva koko idibanise phantsi kweqondo lokushisa kunye noxinzelelo ngoxinzelelo olushushu. Njengoko ubushushu be-veneer kunye nokufuma okuqulethe utshintsho, i-veneer iya kuncipha. Inkcitho yokucutheka inxulumene neqondo lobushushu, uxinzelelo, ixesha lokushicilela elishushu, izinto zomthi, ukufuma okuqulathwe, umlinganiselo wenkcitho yi-3% -8%

7) Ukunciphisa umda:

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Ukunciphisa umda weflanki yeplywood ukusuka kumatshini oshushu ukuya kwibhodi yeplywood efanelekileyo. Iintsalela ezinxulumene inkqubo iintsalela kunye nomlinganiselo imveliso. Imveliso inkulu, inkcitho incinci. Umlinganiselo wenkcitho yi-6% -9%

8) Ukuhlamba

I-Sanding plywood surface ukuze ilunge. Inkcitho ngumgubo. Umgangatho weVeneer ulungile, isanti incinci. Umlinganiselo wenkcitho yi-2% -6%

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9) Ugcino:

I-Plywood ipakisha kwi-palletize okanye ngobuninzi

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

Iimveliso zeplywood ezigqityiweyo

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Ngaphambili: Predictive analysis: 2022 China's wood based panel industry development status and development trend

Okulandelayo: Why is plywood deformed?

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