A kind of preparation method of plain high-light shell of green home appliance

A kind of preparation method of plain high-light shell of green home appliance

  • CN 102,294,828 B
  • Filed: 09/14/2011
  • Issued: 11/04/2015
  • Est. Priority Date: 09/14/2011
  • Status: Active Grant
First Claim
Patent Images

1. a preparation method for plain high-light shell of green home appliance, is characterized in that:

  • comprise the following steps;

    Step one;

    by recycled plastic and the making sheet of flame retardant plastics co-extrusion;

    Be specially;

    (1) recycled plastic is classified, pulverize, cleaning, dry;

    (2) by fire-retardant raw material and the recycled plastic after above-mentioned process, by recycled plastic 60% ~ 70%, glazed flame-retardant plastics 15% ~ 20%, the ratio of easy welding flame retardant plastics 15% ~ 20% carries out the preparation of sheet material basic material, utilizes the three-layer co-extruded extrusion equipment of ABA to be that under the condition of 280 DEG C ~ 305 DEG C, extrusion has the high glaze outer surface of fire resistance and is easy to the sheet material of welding accessory inner surface in temperature;

    Step 2;

    utilize the empty forming machine of the non-contacting pressure of special surface shaping;

    Be specially;

    (1) utilize laminating machine on the high glaze outer surface of step one extrusion sheet material, attach one deck Electrostatic Absorption diaphragm;

    (2) the more above-mentioned plate shears being pasted with diaphragm is cut into the size of needs, the high glaze of sheet material is faced up and is placed on the three-station type rotating disk self-locking clamping plate press box of the empty forming machine of the non-contacting pressure of special surface, after positioning locking, after in the temperature range of 175 DEG C ~ 185 DEG C, heating makes material softening, return back to surperficial non-contact air and press empty forming station, utilizing 2 ~ 3bar low-pressure air from bottom to top sheet material to be blown drum makes sheet material extend, again mould to be risen and after contacting sheet material, upper pressure shield declines and locks, mould is vacuumized, upper pressure shield inside adds 5 ~ 7bar pressure-air, make sheet material according to cooling after mould sizing, make green home appliance shell semi-finished product,Step 3;

    the green home appliance shell semi-finished product after shaping are carried out three-dimensional shape cutting;

    Step 4;

    by the half-finished dimensional requirement of shell after cutting, carry out being bumped into part injection moulding;

    Step 5;

    the green home appliance shell semi-finished product after shaping cutting and injection moulding are bumped into part and assemble;

    Step 6;

    utilize supersonic wave welder to carry out welding to the part that is bumped into after assembling;

    Step 7;

    the part gluing that is bumped into after above-mentioned welding is engaged.

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