Liner of refrigerating equipment and preparation method thereof
A technology of refrigeration equipment and liner, which is applied in household refrigeration equipment, lighting and heating equipment, flat products, etc., can solve the problems of high scrap rate, long purchase cycle, and inability to mix use of extruded boards and blister, so as to reduce the risk of cracking. , The production management is convenient, the effect of improving the strength
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Embodiment 1
[0033] Example 1: Door lining of refrigeration equipment (total thickness 1.2mm)
[0034] The material of the surface layer is Chevron natural color HIPS-D6007.
[0035] The base material is Chevron HIPS-D6007, dyed with 5% masterbatch, and 70% crushed material or recycled granulated material is used as the recycled material.
[0036] Mix Chevron HIPS-D6007, color masterbatch and recycled material evenly to obtain the mixed material;
[0037] Chevron natural color HIPS-D6007 is melted with the mixed material and co-extruded through the extruder die to form a semi-finished sheet. By adjusting the speed of the metering pump, the thickness of the surface layer of the HIPS two-layer composite sheet is 0.12mm, and the thickness of the bottom layer is 1.08mm, where the extruder head temperature is 190-240°C, and the melting temperature is 180-240°C;
[0038] The semi-finished sheet is conveyed to the traction roller for traction forming through the cooling roller table conveyor. T...
Embodiment 2
[0041] Example 2: Door liner of refrigeration equipment (total thickness 1.2mm)
[0042] The raw material of the surface layer is TOTAL HIPS-8265.
[0043] The base material is Chevron HIPS-D6007, dyed with 5% masterbatch, and 70% crushed material or recycled granulated material is used as the recycled material.
[0044] Mix Chevron HIPS-D6007 and recycled material evenly to obtain mixed material;
[0045] Melt Stottal HIPS-8265 and the mixed material and co-extrude through the die head of the extruder to form a semi-finished sheet. By adjusting the speed of the metering pump, the thickness of the surface layer of the HIPS two-layer composite sheet is 0.03mm, and the thickness of the bottom layer is 1.17mm. mm, where the extruder head temperature is 190-240°C, and the melting temperature is 180-240°C;
[0046] The semi-finished sheet is conveyed to the traction roller for traction forming through the cooling roller table conveyor. The temperature of the cooling roller table ...
Embodiment 3
[0049] Embodiment 3: tank of refrigeration equipment (total thickness 3.3mm)
[0050] The material of the surface layer is Chevron natural color HIPS-D6007.
[0051] The base material is TOTAL HIPS-8265, dyed with 5% masterbatch, and 50% crushed material or recycled granulated material is used as the return material.
[0052] Mix TOTAL HIPS-8265 and recycled materials evenly to obtain mixed materials;
[0053] Chevron natural color HIPS-D6007 is melted with the mixed material and co-extruded through the extruder die to form a semi-finished sheet. By adjusting the speed of the metering pump, the surface layer thickness of the HIPS two-layer composite sheet is 0.33mm, and the thickness of the bottom layer is 2.97mm, where the extruder head temperature is 190-240°C, and the melting temperature is 180-240°C;
[0054] The semi-finished sheet is conveyed to the traction roller for traction forming through the cooling roller table conveyor. The temperature of the cooling roller tab...
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