Cold Rolled Steel strip Technology and market

2/22/2008 12:45:23 PM

High-efficiency energy-saving design of Seamless Steel Tube drawing machine

Abstract: The high-efficiency energy-saving seamless steel tube drawing machine using electro-hydraulic variable frequency control technology and high resolution Detection Technology Control blank drawing Seamless Steel Tube Forming speed and the lattice deform

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Tags: Seamless-Steel-Tube  

何苦Post at 12:45:23 PM Visted14 | Comments (0) | TrackBacks (0) | Steel Technology

11/19/2007 8:56:58 AM

Steel Knowledge Channel

1, the basic concept



Channel steel for the groove-shaped cross section is the long steel. Its specifications that methods, such as 120 * 53 * 5, said waist high as 120 mm, legs wide for the 53 mm of channel steel, waist thick as 5 mm of channel steel, or 12 # channel. The same channel waist high, if several different legs wide and thick waist models also need to distinguish between right and abc, such as 25 a # 25b # 25c #, and so on.


2, classification and uses


Channel-ordinary channel steel and light channel. Hot ordinary channel specifications for 5-40 #. The agreement between supply and demand in the supply of hot rolled alternative channel specifications for 6.5-30 #. The main channel for building structure, vehicle manufacturers and other industrial structure, channel steel I-beam and also often used in conjunction with cold rolled steel strip.


3, the main origin


China mainly Baogang, Laiwu Steel, Wuhan Iron and Steel Company, Magang several steel production and other less.

Tags: steel  konwledge-channel  

Steel-WorldPost at 8:56:58 AM Visted11 | Comments (0) | TrackBacks (0) | Cold Rolled Steel

11/11/2007 11:26:56 PM

Alloy steel structure on the basis of knowledge

Alloy steel structure in the carbon structure is based on the 5% following one or more of the elements. Steel added alloying elements, the first is to improve the steel hardenability to ensure steel after heat treatment, was good mechanical properties, high strength and enough toughness.
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Tags: steel  basis  

Steel-WorldPost at 11:26:56 PM Visted21 | Comments (0) | TrackBacks (0) | Steel Global

10/30/2007 5:27:29 AM

Billet in the solidification reasons by cold rolled steel strip

          Billet in the solidification process of the reasons for the formation of cracks With the increasingly fierce market competition, the quality of products has become the main market weight possession, the billet end products as steelworks, its direct impact on the quality of output and

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Tags: steel  cold  rolled  

Steel-WorldPost at 5:27:29 AM Visted30 | Comments (0) | TrackBacks (0) | Cold Rolled Steel

10/26/2007 12:59:19 AM

Center/high-carbon steel micro alloy and its application rationalerelated knowledge

Middle-and high-carbon steel is the carbon content of 0.4 to 0.8% carbon strip steel and carbon manganese steel, with the exception of manganese, excluding other alloying elements; To improve performance and the addition Microalloying elements Nb, V, Ti, Al, B,

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Tags: steel  technology  

Steel-WorldPost at 12:59:19 AM Visted32 | Comments (0) | TrackBacks (0) | Steel Technology

10/26/2007 12:50:03 AM

Four kind of spiral steels simultaneously exist reason

What standard discrimination four kind of spiral steels rest on? Iswho differentiates? Has carried on "the textual research", but doesnot have a correct answer, also does not have an authoritativedepartment to give  roentgen. Then, what "four kinds" steel? 
So

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Tags: spiral  steel  

Steel-WorldPost at 12:50:03 AM Visted36 | Comments (0) | TrackBacks (2) | Steel Technology

10/23/2007 6:56:15 PM

Tinplate

Basic concepts:

          Tinplate surface is coated with a layer of tin hut, it difficult to rust, also known tin iron. Tinplate first produced in Bohemia (now the Czech and Slovak territory). The metal

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Tags: Tinplate  steel  metal  

Steel-WorldPost at 6:56:15 PM Visted41 | Comments (0) | TrackBacks (3) | Steel Global

10/22/2007 6:52:50 PM

chrome

         Chrome is a developmental process late, although as early as 1854 some people from the three prices for metallic chromium plating in Bath, invented in 1856 and Bath in price from three of chromium plating process, but until the 1920s, chromium plating proc

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Tags: chrome  steel  rolled  

Steel-WorldPost at 6:52:50 PM Visted30 | Comments (0) | TrackBacks (1) | Steel Technology

10/22/2007 10:24:47 AM

Seamless Steel Tube

        Basic concepts: Seamless Steel Tube is a kind of hollow cross section, not peripheral joints of the long steel. A hollow steel tube sections, a large number of pipelines for transportation of fluid, such as the transportation of oil, natural gas, gas, water and certain pi

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Tags: seamless  tube  pipe  

Steel-WorldPost at 10:24:47 AM Visted40 | Comments (0) | TrackBacks (3916) | Steel Global

10/16/2007 7:12:57 PM

The corrosion resistance of stainless steel main source

Stainless steel corrosion resistance comes mainly from chromium. Experiments proved that only chromium-containing in excess of 12%, the corrosion resistance of steel will be greatly enhanced, therefore, the chromium-containing stainless steel in general not less than 12%. Because of the inc

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Tags: steel  stainless  technology  

何苦Post at 7:12:57 PM Visted66 | Comments (0) | TrackBacks (0) | Steel Technology

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