Monthly Archives: May 2016

(For beginner) Plywood knowledge& Manufacturing Experience Part 12: The glue or Adhesive and the machinery used for plywood and other wood panels production

Now the weather is hot, the temperature is rising , the time of the glue curing  is shortened, especially when the wind is big, it is easier to solidify and curing . So, this season, the factory need a good flexible management for their daily plywood production , in a timely manner to …

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(For beginner) Plywood knowledge& Manufacturing Experience Part 11: Discussion about the Effect of Equilibrium Pressure on Plywood manufacturing

In the case of the plywood area S unchanged, the pressure P and pressure F is proportional to. And the pressure of the size, determines the degree (density) of the plywood and the bending strength and other basic properties. That is, under different pressure, the composition of the production of …

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Professional training would be good for most of the Plywood QC/QA Parts 54: Thin plywood ( 1.8mm to 6.0mm thinner than 9.0mm ) Flex & Look Test

This test only suitable for the thin plywood such as 2.5mm,3.6mm,4.0mm,5.2mm,5.5mm and 6.0mm . For thick plywood from 9.0mm are not suitable . Flex & Look Test 弯曲和外观测试 Follow these steps: 按照下列步骤: Stand the thin plywood panel vertically with its 4′ edge (1220mm side ) on the floor and the …

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Professional training would be good for most of the Plywood QC/QA Parts 53: Plywood Core veneer shortage (Missing Layer ,Lacking Layer )

Here,first ,we need to clear something for you about the plywood core structure : Plies (ply ) : Layers (Layer ): We have all heard people say,”how many plies of the 18mm plywood ”  or “how many layers of the 18mm plywood “,here ,the plies or layers ,means each ply or …

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Professional training would be good for most of the Plywood QC/QA Parts 52: Oblique Sanding unit/ Parallel Sanding unit Surface sanding of plywood

Surface sanding problem of plywood Plywood sanding, determines its final surface quality. The core platform sand paper needs 60 to 80 grit and the belt, or other. For the sanding of the plywood top face and bottom back surface , generally at least 120 grit or 240 or 360.. Oblique …

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Professional training would be good for most of the Plywood QC/QA Parts 51: Some Plywood Surface manufacturing defects

Grade Description I Permitted not more than 3 wood and manufacturing defects such as: — lack of veneer, defects of panel edges due to sanding or trimming not more than 2 mm — pin knots, sound intergrown light and dark knots, with diameter not more than 15 mm, partially intergrown, …

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Professional training would be good for most of the Plywood QC/QA Parts 50: Packing Materials for pLYWOOD

For outer packing, it is one of the factors that determine the quality of plywood. Packaging materials, packaging methods, and shipping marks printed outside, All decide the quality level of the inside plywood. Different customers different countries and markets for packaging requirements are different, the material is divided into ordinary …

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Professional training would be good for most of the Plywood QC/QA Parts 49: Defects are easy to produce, causes and solutions of the edges trimming production of plywood .

First, the trimmed plywood edge Causes: 1, both sides of the track pressure is inconsistent or inconsistent pressure on both sides of the drum 2, while plywood Saw clip the solution: 1, adjust the pressure Check the saw cut, replace the blade Second, the two sides are not parallel Causes: …

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Professional training would be good for most of the Plywood QC/QA Parts 48:Hot pressing step

Hot pressing step is the most important plywood production processes, pressing time, temperature and pressure affect the quality of plywood glued three important pressing parameters, each company very seriously. But requires daily hot out of plywood timing of several on-site inspection to ensure that the effect is hot enough attention, …

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