The material of PP hollow board determines its non-toxic, pollution-free, corrosion-resistant, waterproof and shockproof performance. In the process of use, it will not produce dust, and has a long service life, which is more than 4-10 times of that of corrugated board. It can be recycled and has the trend of gradually replacing paper corrugated board, which is mainly reflected in the product packaging. In addition, due to the light weight, good toughness, flexible size and low cost of PP hollow plate, PP hollow plate turnover box equipped with various parts has the tendency to replace injection molding turnover box.

A、 Test method:

1. Component experiment

Take the hollow plate not less than 1 square meter for measurement, and calculate the component of unit area,

2. Scale measurement

The board is measured along the direction of vertical reinforcement with a measuring tool with an accuracy of 1 mm, and the measuring position is within 100 mm from both ends. The board width is measured perpendicular to the direction of vertical reinforcement with a measuring tool with an accuracy of 1 mm, and the measuring position is within 100 mm from both ends.

3. Appearance inspection

The appearance quality inspection is carried out in the room with enough natural light and 300-400mm away from the product by visual inspection.

4. Cold bending function experiment

Under the ambient temperature, the hollow plate with the width of 0.5m and the length of 2m shall be cold bent along the direction of reinforcement on the measuring tool with the radius of 175 times of the plate thickness, and the hollow plate shall not have cracks.

B、 Precautions for packing:

1. Delivery

During transportation, the hollow plate shall be kept clean, and shall not be touched with corrosive medium. It shall be handled with care to ensure the integrity of the product.

2. Packaging

The outer surface of the hollow board should have a layer of maintenance film, and the outer package should also be marked with the name of the product, the name of the manufacturer, and the signs of "sunscreen, rainproof and anti-collision",

3. Delivery

The hollow board should be pasted or printed with the product logo on the prominent parts, including the manufacturer's name and trademark, product name, product specification, model and specification number, anti ultraviolet appearance logo, date of manufacture or number.

4. Storage

The hollow plate shall be stored in a ventilated and dry room with flat accumulation. During storage, it is forbidden to put it together with corrosive medium and keep away from heat source.