Foaming equipment quality appraisal

foaming equipment is a machine used to inject raw materials that can produce plastic foam into the gap between the container and the film-lined contents during product packaging, and form a foam cushioning material that tightly wraps the contents through a chemical reaction. It can make a certain concentration of aqueous solution into foam, and is mainly used in cement foaming, foam molding, cement foam insulation board production and other fields. The core principle of
foaming equipment is to introduce air into the foaming agent aqueous solution and disperse it evenly through mechanical action to achieve the largest possible contact interface between liquid and gas, so that the surfactants in the foaming agent form an electric double layer on the surface of the liquid film and surround the air, forming bubbles.
In foaming equipment quality appraisal cases, Zhongke Testing can provide foaming equipment quality appraisal services.

Classification of foaming equipment Foaming equipment can be divided into latex foaming equipment and aerosol foaming equipment.
latex foaming equipment is suitable for producing daily necessities, such as mattresses, sofa cushions, car seat cushions, insoles, etc.
aerosol foaming equipment is suitable for manufacturing various industrial supplies, such as thermal insulation materials, sound insulation materials, heat insulation materials, etc.

GB/T 18944.2-2022 Flexible porous polymer materials Sponges and foamed rubber products Specification Part 2: Molded and extruded products
GB/T 22936-2008 Phenolic foam plastics for flowers
GB/T 24451-2020 Slow rebound flexible polyurethane foam
GB/T 17794-2021 Flexible foam rubber and plastic insulation products
GB/T 35452-2017 Regenerated bonded flexible polyurethane foam
GB/T 40872-2021 Plastics Polyethylene foam test method

The court entrusted our company to analyze whether the "foaming equipment" involved in the case meets the quality standards; to analyze whether the "foaming equipment" involved in the case can operate normally, whether it can perform stable foaming, and whether the foaming quality meets the standards.
1. Analysis situation:
First of all, our company organized analysis experts to go to the location of the "foaming equipment" involved in the case to conduct a preliminary investigation together with representatives of the client and both supply and demand parties. Our company organized on-site communication to understand the disputed matters and conducted a preliminary survey of the "foaming equipment" involved. Subsequently, our company organized appraisal experts to come to the site of the "foaming equipment" involved again. First of all, our company coordinates the supply and demand parties on site to repair, maintain and cooperate with the equipment involved;
After the equipment maintenance is completed, our company organizes the purchaser to produce the foam products according to their existing process conditions and samples the foam products produced by the equipment by each party. Our company will bring the sealed sample back for testing and comparison purposes.
2, analysis results
1) The status of the "foaming equipment" involved in the case has been partially changed compared with the product pictures provided by the supplier, but it does not affect the foaming function of the entire equipment;
2) The "foaming equipment" involved in the case can be turned on and run to realize the functions of the foaming equipment;
3) The foam physical properties of the "foaming equipment" involved in the case are not up to standard, the hardness and tear strength are not enough, the aging resistance is poor, and the hole structure performance is poor, which does not comply with GB/T 24451-2020 "Slow rebound flexible polyurethane foam" requirements.