Search results for keyword: qing
Development and application of thermal spraying technology in foreign countries
Foreign hot spraying Technology Development and Application
Abstract: Hot spraying is a relatively new coating technology。 It has unique advantages, such as high coating efficiency, high coating quality and good adhesion. It has been widely used in aerospace and automobile industries. This paper......
1117 
Landon
Gating system dimensions for tin bronze castings
Introduction
Casting of bronze items is an ancient process that is still used today. It involves the pouring of molten metal into a mold, which is then cooled and the finished product removed. The process of bronze casting requires precise measurements to ensure the quality of the finished produ......
cast yellow bronze
Bronze, which is made from copper and tin or other metals, is a metal alloy that has been around since ancient times. It has been used in many applications all over the world, including weapons, tools, decorations, and monuments. Bronze is a strong, durable material that has an attractive golden-b......
Daqing Oilfield Total Export Metering Station
The Daqing Oil Field Total External Transportation Metering Station
Located in the most prosperous area of the Daqing Oilfield in the northeast of China, the Daqing Oil Field Total External Transportation Metering Station (DOTEM) plays a critical role in the transportation of crude oil from the D......
Ancient Chinese Heat Treatment Technology
Introduction
Metal smelting and heat treatment technology have been developed since the early days of Chinese civilization. Heat treatment is an integral part of the Chinese civilization, as it is one of the most effective techniques used to modify and shape metals. Heat treatment is used mainly ......
Open hearth
The Carboniferous period is a geological period that occurred approximately 300 million years ago and was characterized by the development of large forests and the intensification of coal deposits. During this period, the Earth experienced extreme climatic changes, with volcanic activity resulting......
AC arc welding power supply
Arc Welding Power Sources
Arc welding, also known as shielded metal arc welding (SMAW), is one of the most popular and widely used welding processes. It’s used to join two pieces of metal together and is a very effective way of creating strong welds for all kinds of applications. Arc welding mak......
Delonghi Organization Chart
De Longh Group is an international group of companies, which is made up of six sub-companies and divisions. Those companies have formed a strategic alliance that offers high-quality products, services and value to the global business community.
The structure of De Longh Group consists of six divi......
North China Oil Region
The North China Oil Region
The North China Oil Region is an important area of oil and gas extraction in China. This region is composed of a number of provinces, cities and autonomous regions, including Hebei, Shanxi, Inner Mongolia, Ningxia, Shaanxi, Gansu and qinghai.
An analysis of the various......
Bai Jin
Climate Change
Climate change is an existential threat to the world and we must act to curb it. Whether it is altering temperatures, affecting ecosystems and biodiversity or changing patterns of weather, the impacts of climate change are multifaceted and may be irreversible. To ensure that our p......
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