Apparatus for preparing S type metallic honeycomb

Abstract

The invention relates to a device for preparing an S-shaped metal beehive, comprising a fixed pole (1) and two groups of forming sections (5) which can be mutually closed section by section to form asection mould, wherein, two coaxial fixed rods (4) are arranged on the top of the fixed pole (1). The invention is characterized in that: each group of forming sections (5) consist of at least three sections; a chain structure is hinged between each section by utilization of a pin pole; the forming sections (5) can be gradually deformed from a straight line or a curve with small curvature to a curve with large curvature; the two groups of forming sections (5) are closed to form the section mould the cross section of which is round, obround or elliptical. Due to adoption of the technical proposal, the metal stack fixed rods (namely the S-shaped center) are immobile during the rolling process; corrugated tooth profiles can be straightened by the sectional closed section mould during the rotation process even an inner core material piece is slightly longer, and residual tooth profiles can be straightened into flat sheets and then attached to the circumference of an inner core of the beehive; moreover, an S-shaped central tooth profile is always immobile and then can not be deformed, thereby the forming quality and the finished product rate are improved.

Description

technical field [0001] The invention relates to a roll-up device for a metal honeycomb of an engine emission catalytic converter. Background technique [0002] With the increasingly stringent emission regulations, higher technical requirements have been put forward for the metal honeycomb used in exhaust gas catalytic converters. The metal carrier generally consists of a honeycomb inner core 9 and an outer shell 10 (see figure 1 and figure 2 ). The metal carrier currently produced in my country is basically a spiral honeycomb structure (see figure 1 ), this is a foreign product in the 1970s. Due to its poor thermal creep and thermal deformation resistance and poor durability, a large number of S-type honeycomb structures have been used abroad (see figure 2 ) replaced. The S-shaped structure is the basic structure of the metal carrier because of its reliable durability and good turbulent flow. [0003] Patent CN1078101C discloses a rolling device and method of S-shape...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a manufacturing device suitable for S-shaped metal honeycombs of domestic iron-chromium-aluminum flakes, to solve the problems of high rolling requirements and high production costs of iron-chromium-aluminum flakes made of metal honeycombs in the prior art

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