NEWS | Wanzhi Group

Some notes on chrome plating process

Chrome plating process characteristics Chrome plating process is a relatively complex coating compared to other coatings, with the following characteristics: Chromium is easily passivated and is therefore very stable in many media. Car Network Small dumbbells The chrome plating solution uses highly oxidizing chromic anhydride (CrO3) rather than chromium salts. Therefore, during the plating process, external ions need to be added to achieve the chromium deposition process. The cathode polarization process is complex. Experienced chrome plating workers can judge whether the chrome plating is normal by the amount of cathode “flowers”. This “flower” is the hydrogen released from the cathode. The current density used in chrome plating is very high, […]

Some notes on chrome plating process 続きを読む »

Brazil Provisional anti-dumping duties on China tin-plate & chrome plate

Information / wanzhigroup

On October 21, 2024, the Executive Committee of the Brazilian Foreign Trade Commission (GECEX) issued Resolution No. 649 of 2024, which decided to impose a temporary anti-dumping duty of no more than 6 months on alloy or non-alloy tin-plate coils and chrome-plate coils (Portuguese: folhas metálicas de aço carbono, ligado ou não ligado, de qualquer largura comespessura inferior a 0,5 mm) originating in China with any width and thickness less than 0.5 mm, with a tax amount of US$251.97-341.28/ton (see the attached table for tax details). The Mercosur tariff numbers of the products involved are 7210.12.00, 7210.50.00, 7212.10.00 and 7212.50.90. The resolution will take effect from the date of publication.

Brazil Provisional anti-dumping duties on China tin-plate & chrome plate 続きを読む »

Steel price of recent various steel products nationwide

Information / wanzhigroup

Steel price have always been the issue that purchasers pay the most attention to. Here is a summary of the recent price trends of cold-rolled steel and hot-rolled steel in some cities in mainland China. 1.0mm cold-rolled steel price 3.0 hot-rolled steel price 0.5mm Galvanized Sheet Coil

Steel price of recent various steel products nationwide 続きを読む »

Wanzhi factory spot steel pipe - straight seam steel pipe - cheap price

The difference between seamless steel pipe and seamed steel pipe

NEWS / wanzhigroup

Seamed steel pipe and Seamless steel pipe are two major categories of steel pipes. Steel pipes have promoted the vigorous development of industries such as industry and construction in our society. Steel pipes are divided into many categories, and seamless steel pipes and seamed steel pipes are one of them.What are the differences between them and what are their characteristics? What are seamless steel pipes and seamed steel pipes? Seamed steel pipe Seamed steel pipes are also called welded steel pipes. They are steel pipes with seams on the surface that are made by bending steel strips or steel plates into round, square and other shapes and then welding them.

The difference between seamless steel pipe and seamed steel pipe 続きを読む »

How are steel pipes classified in use?

NEWS / wanzhigroup

There are many ways to steel pipes classified. In addition to the common classification based on the production method, material, coating characteristics, cross-sectional shape and other characteristics of the steel pipe itself, they can also be classified according to connection methods and purposes when in use. Connection Type Classification Steel pipes can be divided into: plain pipes (without threads at the pipe ends) and threaded pipes (with threads at the pipe ends) according to the pipe end connection method. Threaded pipes can be divided into: ordinary threaded pipes and thickened threaded pipes at the pipe ends. Thickened threaded pipes can also be divided into: external thickening (with external threads), internal

How are steel pipes classified in use? 続きを読む »

How to choose corrugated steel plate?

NEWS / wanzhigroup

Corrugated steel plate is a common metal material used in construction, packaging and manufacturing. It is processed by corrugated forming machines to form a wavy surface. Corrugated steel sheets are generally used for building materials such as roofs, walls and isolation, and can also be used for manufacturing materials such as packaging boxes and shelves. Classification of corrugated steel plate According to different uses and manufacturing processes, corrugated steel sheets can be divided into the following categories: Color-coated corrugated steel plate This type of corrugated steel sheet is coated with a color coating on the surface, which can not only provide good corrosion resistance, but also achieve a decorative effect.

How to choose corrugated steel plate? 続きを読む »

Why is tinplate bottle cap indispensable

Why is tinplate bottle caps indispensable?

NEWS / wanzhigroup

Tinplate bottle caps are common Tinplate bottle caps are a common type of bottle caps. They are basically used on beer bottles and canned bottles. Bottled Coca-Cola, Sprite and other soda bottle caps are also made of tinplate. Tinplate is an iron sheet with a layer of tin on the surface. It is not easy to rust. It is also called tin-plated iron and is an important metal bottle cap material. Tinplate bottle caps are inconvenient to use Compared with plastic bottle caps, tinplate bottle caps are more difficult to open, especially for those with less strength. It sometimes takes a lot of effort to open cans and soda bottle

Why is tinplate bottle caps indispensable? 続きを読む »

Why tinplate metal the first choice for many metal packaging

NEWS / wanzhigroup

Tinplate metal is one of the most common metal items we have. We can see various styles of tinplate cans on supermarket shelves.Most children’s and adult food packaging comes in tinplate cans. Tinplate cans Tinplate milk powder cans Why do people choose tinplate for packaging? Many of the cans we come into contact with in our daily lives, such as canned meat, milk powder cans, tea cans, candy cans, etc., are made of tinplate metal. Why do so many products choose tinplate as packaging? Here we will show you why tinplate cans are used to package food. Advantages of tinplate metal cans: In addition to causing food deterioration reactions, light

Why tinplate metal the first choice for many metal packaging 続きを読む »

When buying color coated steel you should pay attention

NEWS / wanzhigroup

History and Uses of Color Coated Steel Color coated steel products have been developed for nearly 100 years, and we can come into contact with color-coated steel products in many places where we live and work. Color Coated Steel Development history In 1927, the United States pioneered the production of organic coated steel plates 1936, the United States built its first production line 1954, Japan introduced American technology to produce single color-coated steel plates 1964, continuous color-coated steel plate production lines were put into operation, and many European countries began to produce color steel plates 1975, South Korea and China jointly began to produce color steel plates 1988, Wuhan Iron

When buying color coated steel you should pay attention 続きを読む »

Differences between PPGI and PPGL

NEWS / wanzhigroup

Comparison Between PPGI and PPGL PPGI and PPGL are two different coating technologies with certain differences in application and performance. PPGI is a technology that uses zinc as a matrix and coats a layer of color pigment on the zinc surface, which is suitable for lighter environmental conditions. PPGL, on the other hand, uses aluminum zinc as a matrix and coats a layer of color pigment on the aluminum zinc surface, which has better corrosion resistance and is suitable for harsh environmental conditions. This is the main difference between PPGI and PPGL, which will further affect their functions and applications. PPGL sheet has better heat resistance than PPGI sheet. PPGL

Differences between PPGI and PPGL 続きを読む »