Gradually warming multi-segment type electric heating drying tunnel

Abstract

The invention discloses a gradually warming multi-segment type electric heating drying tunnel which comprises a rack; concave tables at both ends of the upper part of the rack are each connected witha main drive system and a driven system through bearing seats; transition drive systems are symmetrically arranged at both ends of the lower part of the rack; a bearing seat of the transition drive system at one end is provided with a tightening mechanism; the upper part of the rack is provided with a multi-segment type heating chamber, and the right side of the heating chamber is provided with acooling chamber; the upper parts of the heating chamber and the cooling chamber are connected with an exhaust pipe in a penetrating manner, and the tail end of the exhaust pipe is connected with an exhaust fan; the upper part of the rack is provided with a chain slot in a through-length manner, drive chains arranged in the chain slot cooperate with corresponding chain wheels of the main drive system, the driven system and the transition drive systems. The gradually warming multi-segment type electric heating drying tunnel has the advantages of compact structure and reasonable design, drying ofa water riser nonmetal casting part comprises multi-segment gradually warming and then cooling, water vapor in the heating chambers and the cooling chamber is sucked by the exhaust fan, the yield ofthe nonmetal casting part is ensured, and dry cracking and fast drying are avoided.

Description

technical field [0001] The invention relates to the field of casting, in particular to a gradually increasing temperature multi-stage electric heating oven. Background technique [0002] Casting is a kind of metal thermal processing technology mastered by human beings earlier, with a history of about 6,000 years. China has entered the heyday of bronze castings between 1700 BC and 1000 BC, and the craftsmanship has reached a very high level. Casting is a method in which liquid metal is poured into a casting cavity adapted to the shape of the part, and after it is cooled and solidified, the part or blank is obtained. The material to be cast is mostly a metal that was originally solid but heated to a liquid state (eg copper, iron, aluminum, tin, lead, etc.), and the material of the mold can be sand, metal or even ceramics. Depending on the requirements, the methods used will vary. [0003] After the casting is taken out from the pouring and cooling mold, there are sprues, ri...

AI Technical Summary

Problems solved by technology

[0004] In the casting process, a riser is needed, and the riser is cast from non-metallic materials. Due to the need for drying during the production of the riser, cracking or even fragmentation will occur.

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