Process for casting seal rainproof complex flanges

A composite flange and casting process technology, which is applied in the direction of manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of short production time, difficulty in ensuring the production cycle, and insufficient reserves of metallurgical accessories, so as to avoid rust and corrosion, Effect of shortening life and benefiting disassembly

Active Publication Date: 2016-05-25
YANCHENG AOTONG TESCO FOUNDRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the rapid and continuous development of the economy, the output of steel castings has increased rapidly. In the future, the production of large steel castings with high quality, high added value, and special materials and properties will become a new development direction of the steel casting industry. Flanges It is one of the typical parts of large steel castings. Flanges are also called flange flanges or flanges. Flanges are parts that are connected to each other between pipes. The flange on the inlet is used for the connection between two equipments, such as the reducer flange, etc. The flange connection or flange joint refers to the connection of flanges, gaskets and bolts as a group of combined seals. The detachable connection of the structure, the pipeline flange refers to the flange used for piping in the pipeline device, and the equipment refers to the inlet and outlet flange of the equipment. There are holes on the flange, and the bolts make the two flanges tightly connected. Sealed with a gasket, the flange is divided into threaded connection flange, welding flange and clip flange. In addition to the dimensional accuracy, excellent mechanical properties must also be guaranteed to meet its working needs under harsh conditions. The requirements for flanges are getting higher and higher. However, due to the short production time of the existing steel casting workshop, the reserve of metallurgical accessories is insufficient. , organize production according to the original process, it is difficult to guarantee the production cycle, so a new flange casting process must be developed in combination with the actual production situation of the workshop, which can produce high-quality flanges to meet the requirements of the work

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  • Process for casting seal rainproof complex flanges
  • Process for casting seal rainproof complex flanges

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a casting process for a sealed and rainproof composite flange, the structure of which is as follows figure 1 and 2 As shown, the cast composite flange includes a first flange and a second flange that are butted left and right, where:

[0047] The first flange includes a first flange body 1 and a shield 2 arranged on the first flange body 1. The shield 2 is formed by extending outward along the edge of the first flange body 1. On the first flange body 1 There are at least four first fixing holes 3 evenly distributed, the first fixing holes 3 penetrate the first flange body 1, and at least four oil injection holes 4 are evenly distributed on the first flange body 1, one oil injection hole 4 corresponds to one first flange body 1 A fixing hole 3, and the oil injection hole 4 is vertically communicated with the first fixing hole 3, and the first flange body 1 is also evenly distributed with first bumps 5 and first grooves 6 on the surface of the fi...

Embodiment 2

[0050] This embodiment provides the casting process of the sealing and rainproof composite flange in the above-mentioned embodiment 1, and the composite flange is cast. The casting process of the composite flange specifically includes the following steps:

[0051] (1) According to the size of the first flange and the second flange, the molding sand and core sand are used as molding materials to make a mold. Before making the mold, the molding sand in the molding material is first placed in an oven for drying , after drying, coat a layer of release agent on the surface of the mold;

[0052] The release agent is made of talcum powder, water, silicone oil, and vegetable oil. The parts by mass are talcum powder: 20 parts, water: 10 parts, silicone oil: 20 parts, vegetable oil: 30 parts, and then use a spray gun to release the mold The agent is sprayed on the surface of the mold cavity with a thickness of 0.05mm;

[0053] (2) Place the raw materials of the first flange and the sec...

Embodiment 3

[0065] This embodiment provides the casting process of the sealing and rainproof composite flange in the above-mentioned embodiment 1, and the composite flange is cast. The casting process of the composite flange specifically includes the following steps:

[0066] (1) According to the size of the first flange and the second flange, the molding sand and core sand are used as molding materials to make a mold. Before making the mold, the molding sand in the molding material is first placed in an oven for drying , after drying, coat a layer of release agent on the surface of the mold;

[0067] The release agent is made of talcum powder, water, silicone oil, and vegetable oil. In terms of parts by mass, it is specifically talcum powder: 30 parts, water: 20 parts, silicone oil: 30 parts, vegetable oil: 40 parts, and then use a spray gun to release the mold The agent is sprayed on the surface of the mold cavity with a thickness of 0.1mm;

[0068] (2) Place the raw materials of the f...

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Abstract

The invention discloses a process for casting seal rainproof complex flanges. The complex flanges comprise first flanges and second flanges. Each first flange and the corresponding second flange are butted to each other in the left-right direction, each first flange comprises a first flange body and a protective cover, at least four first fixing holes are uniformly formed in each first flange body, at least four oil filler holes are further uniformly formed in each first flange body, first lugs are further respectively uniformly arranged on the surface of each first flange body, and first grooves are further respectively uniformly formed in the surface of each first flange body; each second flange comprises a second flange body, at least four second fixing holes are uniformly formed in each second flange body, second lugs are further respectively uniformly arranged on each second flange body, and second grooves are further respectively uniformly formed in each second flange body. The process has the advantages that the process is simple and feasible, the seal rainproof complex flanges cast by the aid of the process are low in casting cost, simple in structure, high in connectivity and good in sealing performance, lubrication can be facilitated when the seal rainproof complex flanges are used, rainproof effects can be realized, the service lives of the seal rainproof complex flanges can be prolonged, and the cost can be reduced.

Description

technical field [0001] The invention relates to a casting process, in particular to a casting process of a sealed and rainproof composite flange. Background technique [0002] With the rapid and continuous development of the economy, the output of steel castings has increased rapidly. In the future, the production of large steel castings with high quality, high added value, and special materials and properties will become a new development direction of the steel casting industry. Flanges It is one of the typical parts of large steel castings. Flanges are also called flange flanges or flanges. Flanges are parts that are connected to each other between pipes. The flange on the inlet is used for the connection between two equipments, such as the reducer flange, etc. The flange connection or flange joint refers to the connection of flanges, gaskets and bolts as a group of combined seals. The detachable connection of the structure, the pipeline flange refers to the flange used f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C3/00C21D6/00C21D9/00
CPCB22C3/00B22C9/22C21D6/004C21D6/005C21D6/008C21D9/0068
Inventor 吴卫明吴正平
Owner YANCHENG AOTONG TESCO FOUNDRY CO LTD
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