Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Chromium-plated plate and manufacturing method thereof, crown cover

A manufacturing method and chrome-plating technology, applied in the field of steel rolling, can solve problems such as unstable performance, reduced elongation of strip steel, and difficulty in meeting requirements, and achieve the effects of enhancing cold forming performance, ensuring deformation ability, and reducing production costs

Active Publication Date: 2018-03-06
ZHANGJIAGANG YANGTZE RIVER COLD ROLLED PLATE CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chrome-plated sheet produced by this process method has two shortcomings: 1. The bell-type annealing performance is not uniform, and the hardness requirement of ±3 cannot be achieved, which is difficult to meet the current requirements of high-speed punching machines in the printing iron can industry; 2. After secondary cold rolling, the elongation of the strip is greatly reduced, and the processing and forming performance of the crown cap is greatly affected, and the quality risk of stamping cracking is very easy to occur
This method can improve the strength of the tin-plated substrate to a certain extent, but it is difficult to increase the hardness to more than 70 with high N composition design. In addition, N element is a strong aging element, and the strip steel is prone to aging after continuous annealing. resulting in unstable performance

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Chromium-plated plate and manufacturing method thereof, crown cover
  • Chromium-plated plate and manufacturing method thereof, crown cover
  • Chromium-plated plate and manufacturing method thereof, crown cover

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] The mass percent of the chemical composition of the high-hardness chrome-plated sheet provided in this example is: C: 0.05-0.09%, Si: 0.005-0.02%, Mn: 0.2-0.6%, Al: 0.02-0.06%, P≤0.02%, S ≤0.015%, N≤0.006%, the rest is Fe and unavoidable impurities

[0033] The effect of alloying elements contained in the application and the selection specific analysis instructions of its consumption are as follows:

[0034] C: 0.05-0.09%

[0035] In the high-hardness chromium plating base, C is an important strengthening element, which ensures the strength of the strip through solid solution strengthening and precipitation strengthening. However, as the carbon content increases, the stamping performance of the strip will deteriorate. In order to ensure the hardness of the chrome-plated plate and avoid steelmaking in the peritectic region (C: 0.09-0.13%), the high-hardness chrome-plated substrate of the present invention controls the C content between 0.05-0.09%.

[0036] Si: 0.005-0...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
hardnessaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a chrome-plate board, a manufacturing method thereof and a crown cap. The chrome-plated board is composed of, by weight, 0.05-0.09% of C, 0.005-0.02% of Si, 0.2-0.6% of Mn, 0.02-0.06% of Al, 0-0.02% of P, 0-0.015% of S, 0-0.006% of N and the balance Fe and inevitable impurities. The manufacturing method of the chrome-plated board sequentially comprises the steps of steel-making, hot rolling, acid pickling and cold-rolling, continuous annealing and flattening, wherein continuous annealing is conducted at the temperature of 580-600 DEG C for 60-100 s. According to the chrome-plated board, the manufacturing method thereof and the crown cap, a cold-rolled sheet is made to be in an intermediate annealing state by adjusting the annealing temperature in the continuous annealing process, and part of non-recrystallization structures are reserved. In this way, the strength grade of band steel is guaranteed, and meanwhile the band steel is made to have certain ductility, so that the deformation capacity of the band steel in the stamping process is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of steel rolling, and in particular relates to a chrome-plated plate, a manufacturing method thereof, and a crown cap. Background technique [0002] Due to its good sealing performance, the crown cap can keep the pressure tightly for a long time without changing the quality and taste, so it is widely used in industries such as glass bottled beer and carbonated beverages, among which the beer industry is the main one. The crown cover belongs to stamping type tinplate, generally adopts T4 material with a thickness of 0.24-0.3mm and a hardness of HR30Tm of 61±3. There are two types of surface coatings: tin plating (SPTE) and chrome plating (TFS). With the development of the food packaging industry, it is proposed to reduce the thickness and increase the strength of the crown cap, and use low-cost chrome plating (TFS) instead of tin plating (SPTE). [0003] In response to this requirement, the current process ...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/04C22C38/02C22C38/06C21D8/02C21D1/26B65D41/12
CPCB65D41/12C21D1/26C21D6/005C21D8/0226C21D8/0236C21D8/0242C21D8/0247C22C38/02C22C38/04C22C38/06
Inventor 吴圣杰王峰汤茜李化龙
Owner ZHANGJIAGANG YANGTZE RIVER COLD ROLLED PLATE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com