MEPER blow molding product quality requirements

Blow molding product quality requirements are also very strict, today MEPER MACHINE through the following points to introduce you, I hope you can more clearly understand the blow molding product quality requirements.

1. Appearance quality requirements

(1) The surface of the product is smooth, no burr, no bad plasticization, no obvious scratches and stripes, watermark, and the barrel mouth is smooth and clean

(2) All parts of the barrel mouth and the barrel body of the product are free of materials and without any damage.

(3) The product barrel mouth is flat without deformation, the barrel mouth is not blocked, the barrel wall thickness should be uniform by visual inspection, and there are barrel products

(4) the barrel handle is not blocked, the barrel body has no obvious deformation, the barrel standing on the ground can not have obvious shaking.

(5) No oil pollution or other impurities inside and outside the product. Volume is not less than 4L products, bucket surface black spot impurities between 0.5~ 1.5mm, and ≤5: volume is less than 4L products, the maximum length of black spot impurities between 0.5~ 1.5mm shall not be greater than 3. The impurities around the black spot should be opaque, otherwise, regardless of the size, number, location of the black spot, should be removed. In the case of metal powder gathering into blocks, the control method is the same as that of impurity black spot. There should be no impurities in the barrel.

(6) The product color is uniform, no obvious color difference, and the sealed sample shall prevail. The sealed sample barrel is only used as the quality judgment basis of the appearance, and the size shall be subject to the explicit provisions in this standard.

(7) The liquid level line is colorless, translucent, clear, and the boundary is clear, which shall not be mixed with impurities. The liquid level line should be straight and uniform in width. Distributed between the scale and the number and not in contact with either. The products of the 3.5 L ~ 6 L

(8) The width of the liquid level line is 6-8mm; 1.5L~ 3L product liquid level line width is 4~ 6mm; ≤1L product liquid

The bit line width is 2.5~ 4m

2. Operation Requirements

Before bagging, check the appearance quality of the barrel first. If there are rough edges on the barrel body, smooth them with a knife. There are a few rough edges on the mouth of the barrel, which feel soft and the height is less than 1mm. When the total length is less than 1/4 of the circumference of the barrel mouth, smooth the rough edge with the back of the knife, do not cut with the blade. Necessary measures shall be taken immediately in case of any rough edges that cannot meet one of the above conditions. When sharp and hard rough edges are formed on the die closing lines on both sides of the barrel mouth, they should not be protruding above the plane of the barrel mouth, and the length should not be greater than the thread, otherwise necessary measures must be taken. Pay attention to the repair should keep the barrel mouth down to ensure that the waste material can not fall into the barrel.

3. Packaging and labeling requirements

When packing, use the complete packaging bag, and pay attention to the cleanliness of the bag, do not clip other materials; The drums must be cooled to approximately ambient temperature before being packed into bags. The drums must not be squeezed between each other.

4. Sampling inspection requirements

Sampling scheme: One batch per shift (12 hours). Determination method: according to the sample test results, there is one unqualified, the whole batch is unqualified. Qualified batch for acceptance, unqualified batch can be returned. For the nonconforming batch, when the nonconforming products are eliminated after double sampling, there are still nonconforming items to return. The appearance of one unqualified, the whole batch unqualified.