Feeding limiting device for mesh belt type tempering furnace

Abstract

The invention discloses a feeding limiting device for a mesh belt type tempering furnace. The feeding limiting device for the mesh belt type tempering furnace mainly comprises a furnace door, a limiting baffle, adjusting bolts, a mesh belt and a tempering workpiece passage. The tempering workpiece passage is arranged under the furnace door. The mesh belt is arranged at the bottom of the temperingworkpiece passage. The limiting baffle is arranged on the one side of the furnace door which is located above the tempering workpiece passage. The limiting baffle is installed by the adjusting bolts.The height of the limiting baffle can be adjusted and fixed by the adjusting bolts at both ends, and a height value can be displayed by scale values at both ends. Scales are arranged on both sides ofthe limiting baffle. According to the feeding limiting device for the mesh belt type tempering furnace, it is guaranteed that the thickness of workpiece tempering laying materials is uniform, the homogeneity and uniformity of the hardness after tempering are improved, and strong guarantee is provided for the improvement of the heat treatment quality of the workpiece; and under the condition of mass production, the hardness fluctuation error of a product decreases (fluctuation errors in a batch drop below 1HRC), and it is verified by the production practice of the company for more than half a year that the heat treatment hardness requirement of a rolling element from a customer is met.

Description

technical field [0001] The invention relates to the field of material heat treatment, in particular to a material feeding limiting device for a mesh belt tempering furnace. Background technique [0002] In addition to the key parameters such as tempering temperature and holding time, the tempering of the heat treatment mesh belt furnace is also an important parameter when the workpiece is tempered. It is directly related to the uniformity and consistency of the tempering hardness and determines the hardness dispersion. Whether it can meet the heat treatment requirements. [0003] A certain type of mesh belt tempering furnace originally used by our company directly sends the workpiece into the furnace through the mesh belt after quenching and cleaning. There is no restriction on the thickness of the workpiece entering the furnace, so the thickness of the workpiece in the tempering furnace suddenly increases. Suddenly low, some thin layers, some piled up very thick, resulting...

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Problems solved by technology

[0003] A certain type of mesh belt tempering furnace originally used by our company directly sends the workpiece into the furnace through the mesh belt after quenching and cleaning. There is no restriction on the thickness of the workpiece entering the furnace, so the thickness of the workpiece in the tempering furnace suddenly increases. Suddenly low, some thin layer, some piled up very thick, resulting in different temperature uniformity and holding time after reaching the tempering temperature, which seriously affects the uniformity and consistency of tempering hardness

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