Thermal bucket
The non-welding process uses the latest biting technology, physically folding stainless steel materials and biting them together, adding silicone to prevent leakage at the biting points; the inlet and outlet, exhaust port, and air energy interface all use the biting process, achieving a fully non-welded design. The production of the insulation barrel mainly relies on CNC machinery to control product quality, with low dependence on employee skill levels, and the scrap rate is below 1‰, effectively controlling production costs.
The production of the insulation barrel adopts the latest production technology, based on the traditional vertical open-cover foaming process, through innovative modifications to the equipment, achieving high-pressure cover foaming for the insulation barrel, allowing the foaming amount to expand autonomously in a sealed space, appropriately increasing the equivalent, causing the foaming amount to continue to flow back down under the dual action of the upper cover and gravity during the expansion process. This forms an integral insulation layer at both ends and the barrel body. Under the same foaming amount formula, the conventional open-cover foaming process has a minimum density of 35-36KG/M3 at the lowest end of the insulation layer and a density of 30-31KG/M3 at the top end, resulting in a significant density difference; the high-pressure cover foaming solar insulation barrel has basically the same density at both ends and the barrel body, with a density of 33KG/M3.
During the production process, different specifications of insulation barrels require changing molds in different batches, leading to low production efficiency, high labor input, and high indirect costs. By modifying the equipment, a pressure regulator is added to the upper cover to reduce the direct impact of high-pressure foaming on the end cover; a positioning ring is added to the bottom, which reduces the time for changing molds and reinforces the insulation barrel, preventing shaking and ensuring uniformity of the insulation layer.
High-pressure cover foaming production line diagram for insulation barrels.
As shown in the figure above: in the traditional open-cover foaming process, the upper end cover is placed on the barrel body after the insulation layer has been foamed, resulting in insufficient density of the insulation layer due to a small amount of insulation material, while too much insulation material causes overflow, leading to waste of raw materials and difficulty in cleaning; the latter figure shows the exclusive cover foaming process adopted by our company, where after the end covers are modified, the foaming amount enters through the feeding port of the upper end cover, appropriately increasing the equivalent so that the insulation material flows down under the dual action of the upper end cover blocking and gravity, resulting in a higher degree of integration of the entire insulation layer and better insulation effect.
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Address: First Floor, Administrative Committee of Haikou Industrial Park, Xishan District, Kunming City, Yunnan Province
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