Cupronickel heat exchange pipe production technology
A technology of heat exchange tube and production process, which is applied in the field of production process of cupronickel heat exchange tube, can solve the problems such as difficult process control and complex production process of cupronickel heat exchange tube, and achieve easy control of process, simple and convenient operation, and simple process flow Effect
Inactive Publication Date: 2015-05-20
QINGDAO HONGTAI COPPER IND
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, the production process of cupronickel heat exchange tubes is complicated, and the process is not easy to control
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreExamples
Experimental program
Comparison scheme
Effect test
Embodiment
[0013] The process flow is: smelting→casting→ingot inspection and repair→ingot heating→water seal peeling extrusion→sawing→straightening→pipe cold rolling→double drawing→pipe intermediate inspection→coil stretching→finished product coiling→ Heat treatment → acceptance → packaging. Among them, cored induction furnace is used for charcoal covering smelting, asphalt lubricant is used in the extrusion process and extrusion pad is used for water seal peeling extrusion, the tube billet is rolled by Pilger cold rolling mill and double-drawing method, the first- The coil pulling speed is 150-200m / min for the 2nd stretching, 250-400m / min for the 3rd-4th stretching, and 450-550m / min for the 5th-7th stretching , Annealed by bright annealing.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a cupronickel heat exchange pipe production technology. The technical process comprises the steps of smelting, casting, cast ingot checking and trimming, cast ingot heating, water seal peeling and extrusion, sawing, straightening, pipe cold reduction, dual-connected drawing, pipe billet intermediate checking, coil pipe drawing, finished pipe winding, heat treatment, acceptance checking and packaging, wherein a core-type induction furnace is adopted for smelting in the manner of being covered with charcoal; during extrusion, asphalt lubricant and an extrusion pad are adopted for water seal peeling and extrusion; pipe billets are rolled by a Pilger cold-rolling mill in a dual-connected drawing mode; the bull block drawing speed is 150-200 m / min in the process of drawing in the first pass and the second pass, the bull block drawing speed is 250-400 m / min in the process of drawing in the third pass and the fourth pass, and the bull block drawing speed is 450-550 m / min in the process of drawing in the fifth pass, the sixth pass and the seventh pass; bright annealing is adopted in the annealing process. Operation is easy and convenient, working procedures are simpler, and the technology is easy to control.
Description
[0001] technical field [0002] The invention belongs to the production process of copper tubes, in particular to a production process of white copper heat exchange tubes. [0003] Background technique [0004] Heat exchange tubes are different from general-purpose tubes. Their physical-mechanical, chemical, plastic and process properties and quality depend on the alloy composition and production process, and the requirements for mechanical properties, organization and surface quality should be guaranteed. This type of pipe is a pipe with high requirements on production technology and quality. Copper and copper alloys have a unique combination of the above properties, which has always occupied a leading position in heat exchanger materials. At present, the production process of cupronickel heat exchange tubes is complicated, and the process is not easy to control. [0005] Contents of the invention [0006] In order to overcome the above-mentioned defects existing in t...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/26
CPCB23P15/26
Inventor 李保成
Owner QINGDAO HONGTAI COPPER IND
Features
- R&D
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
Why Patsnap Eureka
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com