Manufacturing process of door core board

Abstract

The invention provides a manufacturing process of a door core board. The manufacturing process solves the technical problems that an existing door core board has no inflaming retarding and heat preservation performance, and is poor in practicability. The manufacturing process of the door core board comprises the following steps that a, raw materials comprising 28 parts of magnesium oxide, 15 partsof magnesium sulfate, 4 parts of nano titanium dioxide, 2 parts of polypropylene fiber, 4 parts of silica fume, 0.6 part of glass fiber, 0.5 part of phosphoric acid, 10 parts of foaming agents and 51parts of water are weighed; b, the water, the nano titanium dioxide, the polypropylene fiber, the silica fume, the glass fiber and the phosphoric acid are added into a stirrer in sequence, and stirring is carried out at normal temperature; c, then the magnesium oxide and the magnesium sulfate are added into the stirrer, and stirring is continuously carried out at normal temperature for 4 minutes;d, finally the foaming agents are added into the stirrer, and stirring is continuously carried out at normal temperature to obtain a fluid door core material; and e, injection molding is carried outon the fluid door core material, and then airing is carried out through airing equipment. The manufacturing process of the door core board has the advantages of being high in practicability.

Description

technical field [0001] The invention relates to a manufacturing process of a door core board. Background technique [0002] With the continuous improvement of the economy and living standards, the construction industry has achieved unprecedented rapid development. Naturally, the requirements for building materials represented by door panels are also getting higher and higher. The strength of door panels is the most important technical consideration for door materials, and the door core The board is an important component of the wooden door, so the quality and appearance of the door core board are directly related to the quality and appearance of the wooden door. [0003] After searching, for example, Chinese patent literature discloses a door core board and its processing technology [application number: 201110009404.3; publication number: CN 102162327B]. This kind of door core board is characterized in that it includes a single-layer substrate with horizontal grain or multi...

AI Technical Summary

Problems solved by technology

[0004] Although the door core board disclosed in this patent is not easy to bend and deform, the door core board has no flame-retardant and heat-retaining properties, and has poor practicability. Therefore, it is necessary to design a door core board manufacturing process

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