Welding repair of resin hopper and scratch removal by polishing.
At the bento manufacturing factory, we use a hopper made of resin (polypropylene) for the machine that packs cooked rice into bento boxes. Due to frequent installation and removal for cleaning, the welded legs can come off, and cracks can appear at the joints. Similarly, the chute made of resin (nylon) shows signs of aging, such as splinters, fuzziness, and scratches on the surface, making it difficult to clean. Issues: 1. Parts are purchased from the machine manufacturer, but they are never cheap. 2. We attempt self-repair (such as securing with tape), but it peels off again quickly. 3. It is very unfortunate that the hopper, which is still usable in terms of surface condition, cannot be used because the joints have come off. 4. The chute also seems to have a lot of life left, but if the dirt cannot be removed, the risk of mold and bacterial growth increases.
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basic information
It has been confirmed that the hopper's joint is of a welded type, so it has been determined that it can be restored by welding repairs at the crack occurrence site. The legs will also be temporarily removed and reattached through rewelding, and the nylon chute can be restored by polishing the surface where damage has occurred. Points: 1. Repairing has significant advantages over purchasing new parts in terms of cost and delivery time. 2. The machine manufacturer does not provide repair services. *Polypropylene is a resin material that is widely used in food machinery due to its high heat resistance, chemical resistance, and lightweight properties. It is not suitable for repairs using tape or similar methods due to its poor adhesive properties, but welding (thermal fusion) is possible.
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In the current situation where advanced technological capabilities are required of Japanese companies as a whole, we aim to be a trading company that not only possesses "integrity" and "technology," but also explores our customers' needs and responds to their requests.
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