Forming furnace for multiple specifications of pipes

A multi-specification, forming furnace technology, applied in the direction of tubular articles, other household appliances, household appliances, etc., can solve the problems of high cost of forming furnaces and high production costs, save operation steps and parts costs, reduce heat transfer, reduce The effect of production costs

Pending Publication Date: 2021-06-04
JINHU THREE WOOD MACHINERY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many specifications of the inner diameter of the commonly used forming furnace, such as 100, 125, 150, 175, 200, etc. When manufacturers produce pipes for different purposes, they match different forming furnaces according to their specifications. However, the forming furnace is expensive.

Method used

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  • Forming furnace for multiple specifications of pipes
  • Forming furnace for multiple specifications of pipes
  • Forming furnace for multiple specifications of pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The multi-standard pipe 12 forming furnace includes a furnace cylinder 1 and a sleeve 2 whose outer diameter is smaller than the inner diameter of the furnace cylinder 1. The end of the sleeve 2 is connected to the furnace cylinder 1 by bolts through a flange 3. It should be understood that the furnace cylinder 1 The thickness of the ring-shaped end face is relatively large and screw holes are provided for connecting the flange 3. In this scheme, the flange 3 is provided with a port that is installed on the inlet of the furnace tube 1, and the sleeve 2 and the furnace tube 1 is filled with a heat-conducting material 4, and the heat-conducting material 4 in this solution is heat-conducting silicone grease or heat-conducting adhesive or heat-conducting paste.

[0032] In this scheme, the inner diameter of the furnace cylinder 1 is 200 mm, and the sleeve 2 has various specifications, and the outer diameter of the sleeve 2 suitable for the furnace cylinder 1 is 150 mm, 175 m...

Embodiment 2

[0036] In this embodiment, on the basis of Embodiment 1, the way of heating and raising the temperature of the heating chamber 6 is improved. In this solution, the furnace cylinder 1 includes an inner cylinder 13 and an outer cylinder 14. The outer wall of the inner cylinder 13 is provided with a circumferential oil groove 10. The oil grooves 10 are arranged in sections according to the number of heating chambers 6. The oil grooves 10 start from one end of each heating chamber 6. Extending axially along the inner cylinder 13 to the other end, the outer cylinder 14 is sheathed in the outer wall of the inner cylinder 13 for clearance fit and forms a closed oil circuit with the oil tank 10. Both ends of the oil circuit are connected to the oil pipe 9 to form a circuit, and the oil pipe 9 is connected to the oil temperature machine 11 . It should be understood that, in order to ensure the arrangement of the oil inlet pipe 9 and the oil outlet pipe 9 of the oil passage, the diamete...

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Abstract

The invention discloses a forming furnace for multiple specifications of pipes. The forming furnace for multiple specifications of pipes comprises a furnace barrel and further comprises a sleeve with the outer diameter smaller than the inner diameter of the furnace barrel, wherein the end of the sleeve is in bolted connection with the furnace barrel through a flange plate, the space between the sleeve and the furnace barrel is filled with a heat conduction material, and multiple specifications of sleeves are provided. At least one annular heat insulation plate is arranged on the outer wall of the sleeve and divides the outer wall of the sleeve into at least two heating areas, and when the sleeve is installed in a furnace barrel, the heat insulation plate is in contact fit with the inner wall of the furnace barrel. By arranging the sleeve with the outer diameter smaller than the inner diameter of the furnace barrel, a furnace does not need to be additionally arranged when a pipeline with a small pipe diameter is machined; the heat conduction material fills the space between the sleeve and the inner wall of the furnace barrel, heat energy can be effectively conducted, and heat source loss can be reduced; and sleeves of other specifications can be conveniently disassembled and replaced through the flange plate bolt connection manner. The forming furnace is effectively suitable for machining of the pipes of multiple specifications, and the production cost is greatly reduced.

Description

technical field [0001] The invention belongs to the field of glass fiber pipe manufacturing, in particular to a multi-standard pipe forming furnace. Background technique [0002] There are pipelines everywhere in daily life, such as underground pipelines and surface pipelines, including large water pipelines, sewage pipelines and oil pipelines. Considering the use and strength of various existing relatively large pipelines, glass fiber mixture is basically used as the raw material for making pipelines. To make fiberglass pipes, it is necessary to send the pipe material wrapped on the mandrel into a heating and forming furnace for curing and molding, and then be pulled out of the furnace under the action of a tractor to complete the pipe production. [0003] In addition to large pipes, there are many small pipes of different specifications, which require different forming furnaces for matching due to their different diameters. There are many specifications of the inner diam...

Claims

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Application Information

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IPC IPC(8): B29C35/04B29C35/02B29L23/00
CPCB29C35/02B29C35/04B29C2035/0211B29C2035/043B29L2023/00
Inventor 李义宝吴如将
Owner JINHU THREE WOOD MACHINERY IND
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