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Production process of forging lap joint flange of glassed steel equipment

A looper flange, production process technology, applied in flange connections, mechanical equipment, pipes/pipe joints/fittings, etc., can solve the problems of low mechanical strength and plasticity, easy safety, and high production costs, and achieve mechanical strength. And the effect of high plasticity, lower production cost and stable product quality

Inactive Publication Date: 2015-08-26
ZIBO ZHANGDIAN NANGUANG CHEM EQUIP FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current production process of casting loose flanges for casting glass-lined equipment has the following problems: 1. Low mechanical strength and plasticity, poor product quality stability, and safety problems are prone to occur during use
2. High production cost, long cycle and low efficiency
3. The production environment of production workers is poor and the environmental pollution is serious

Method used

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  • Production process of forging lap joint flange of glassed steel equipment
  • Production process of forging lap joint flange of glassed steel equipment
  • Production process of forging lap joint flange of glassed steel equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Purchase round steel with a diameter of 28mm, blank 1.35Kg, heat it to 1000-1200°C with a 250KW intermediate frequency induction furnace, press and bend it on a 63-ton punch, put it into a 400-ton friction press mold for die forging, and place it on a 140-ton punch Cut flash, forged loop flange forgings are drilled on a drill press, forged loop flange is plated for surface and packaged.

Embodiment 2

[0037] Purchase round steel with a diameter of 28mm, blank 1.4Kg, heat it with a natural gas furnace to 1000-1250°C, bend it on a 63-ton punch press, put it into a 630-ton electric screw press mold for die forging, and cut it on a 300-ton hydraulic press. Flashing, forged loop flange forgings are drilled on a drill press, forged loop flanges are plated and packaged.

Embodiment 3

[0039] Purchase round steel with a diameter of 28mm, blank 1.35Kg, heat it to 1000-1250°C with a coal furnace, press and bend it on a 63-ton punch press, put it into a 1-ton die forging hammer mold for die forging, and cut flash at 200 tons The flash is cut on the machine, the forged loop flange forging is drilled on the drill press, the forged loop flange is electroplated and packaged.

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Abstract

The invention is mainly applied to the manufacturing field of a lap joint flange, and particularly relates to a production process of forging a lap joint flange of glassed steel equipment. The production process adopts the following steps: a, heating billet steel to 1000-1250 DEG C; b, forming the heated billet steel in a forging press; c, stamping a forming press; d, cutting flashes on the forging press; and e, drilling. The lap joint flange produced by the process is stable in product quality and high in mechanical intensity and plasticity, the production efficiency can be improved, the raw materials can be saved, and the production cost can be reduced; furthermore, more than 1 million yuan of social resources can be saved every year throughout the country.

Description

technical field [0001] The invention relates to a production process of forging loose flanges for glass-lined equipment, which is mainly used in the field of manufacturing loose flanges. Background technique [0002] At present, the loose flange used in the technical field of glass-lined equipment is a casting flange, and its production process is as follows (take the production of DN80 loose flange as an example): The process flow of producing a cast loose flange: purchase raw materials → cupola smelting ( or electric furnace smelting) and making sand molds → pouring into cast iron loop flanges → heat treatment → surface treatment and packaging. The current production process of casting loose flanges for glass-lined casting equipment has the following problems: 1. The mechanical strength and plasticity are low, the stability of product quality is poor, and safety problems are prone to occur during use. 2. The production cost is high, the cycle is long, and the efficiency i...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00F16L23/028
Inventor 何晋民何聪
Owner ZIBO ZHANGDIAN NANGUANG CHEM EQUIP FACTORY
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