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Flange forging technology

A flange and process technology, applied in the field of flange production, can solve problems such as time-consuming, save time, provide efficiency, and reduce production costs

Active Publication Date: 2020-02-21
济南泰康锻造股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: because the billet needs to be rotated frequently, it takes a lot of time

Method used

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Examples

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Embodiment

[0035] Example: such as figure 1 As shown, it is a flange forging process disclosed in the present invention, step S1: cutting, using a band saw to cut a long blank with a square cross section, and cut it into multiple billets. The weight of each billet is 1.05 to 1.10 times the weight of the qualified flange. The required weight can be converted into the volume of the required billet through the relational formula of density, mass and volume, and then the length of the required billet can be calculated through the cross-sectional area of ​​the billet, and the required length can be calculated by cutting according to the length. Quality billets.

[0036] Step S2: Heating, placing the billet in a natural gas furnace for heating, the temperature of the natural gas heating furnace is 1180°C~1220°C, so that the temperature of the billet is higher than the recrystallization temperature and lower than the solidus temperature.

[0037] Step S3: making a circle, the billet is placed...

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Abstract

The invention discloses a flange forging technology and belongs to the technical field of flange production. The technology comprises the following steps of step S1, cutting, wherein a long-strip-shaped blank with a square cross section is cut into multiple square billets; step S2, heating, wherein the square billets are placed in a heating furnace for heating, so that the temperature of the square billets is greater than that of the recrystallization temperature and smaller than that of a solid phase line; step S3, rounding, wherein the square billets are placed in a rounding mold and forgedinto cylindrical billets; step S4, free end finishing, wherein a pressure machine is used for upsetting the heated billets, and a puncher pin is used for punching the billets; step S5, ring grinding,wherein the billets are installed on a ring grinding machine for ring grinding, and center holes of the billets are enlarged; step S6, annealing, wherein the billets are placed in a resistance furnacefor annealing; step S7, turning, wherein a turning lathe is used for turning a flange. The flange forging technology has the advantage of improving the forging efficiency.

Description

technical field [0001] The invention relates to the technical field of flange production, more specifically, it relates to a flange forging process. Background technique [0002] Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forging can eliminate defects such as as-cast porosity produced in the metal smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. Forging is the most common way in flange production. [0003] At present, the common flange manufacturing process includes the following steps S1: cutting, cutting the billet from the billet; step S2: heating, placing the billet in a heating furnace for heating, so that the temperature of the billet is higher t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21K1/32B21J1/04B21J5/08B21J5/10B21H1/06
CPCB21H1/06B21J1/04B21J5/08B21J5/10B21K1/32
Inventor 耿代溪张玉敬王海昶
Owner 济南泰康锻造股份有限公司
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