Plywood making line

Description:

Plywood production line
1.Manufacturer
2.Good quality as well as low price
3.Easy to operate and maintain
4.saving labors

Processingtechnology of plywood production line:

  In the producing process, log cutting, peeling, dry, handling, hotpress, edge trimming, sanding affect the wastage. The wastage isremains of processing (materiality) and shrinking (immateriality).Wood wastage is related to the material, specification of log,equipment capability, technology and productionspecification.

 1) Logcutting:

 Usually import log length is more than 6 meters. Cutting accordingto the technology required length and quality. The cutting lengthshould be product length add remains. For example, product is1220mm*2440mm, cutting length usually be 2600mm or 1300mm. loglength, camber and demerit affect plywood output directly. Remainsare small wood pieces, truncations, sawdust, tec. Log cuttingwastage ratio is 3%-10%.

 2)Veneer peeling:

 Peeling is the most popular plywood producing process. Back veneerthickness is about 0.6mm,  core veneer and centre veneerthickness is about 1.8mm.

 3)Drying:

 Veneer is moist. it should be dried according to the technologyrequirement. After drying, it will shrink. Dimension will becomesmaller. Veneer length, width, thickness will shrink.  Shrinkwastage is related to wood material, moisture containing, veneerthickness. Shrink wastage is 4%-10%. 

 4)Veneer handling:

 Handling include cutting, putting veneer together and mending. Cutzonal veneer into specification veneer or proper size which can beput together. Narrow zonal veneer can be put together into oneveneer. Veneer with demerit can be mended to be qualified. Wastagein this part related to log material, peeled veneer quality, driedquality, and worker operation skill. Wastage ratio is 4%-16%.import veneer processing plywood wastage ratio is2%-11%.

 5) Hotpress:

 Veneer be glued and stacked, then glue together under settemperature and pressure by hot press. As veneer temperature andmoisture containing changes, veneer will shrink.  Shrinkwastage is related to temperature, pressure, hot press time, woodmaterial, moisture containing, wastage ratio is 3%-8%

 6) Edgetrimming:

 Trimming the edge of the plywood flank from hot press to qualifiedplywood board. Remains related to process remains and productdimension. Production is bigger, wastage is smaller. Wastage ratiois 6%-9%

 7)Sanding:

 Sanding plywood surface to make it good. Wastage is powder. Veneerquality is good, sanding is less. Wastage ratio is 2%-6%

 8)Warehousing:

 Plywood is packing in palletize or in bulk

 

Plywood making line