The development of Legendary of Harley Davidson motorcycle is closely to the history background. The independence day of 1905, there is a motorcycle of racing driver riding a Harley Davidson motorcycle won the motorcycle race in city of Chicago. From now on, the sell number of Harley Davidson motorcycle is increasing. Meanwhile, the scale of manufacturer of Harley Davidson motorcycle is step by step expand. After they have the stable distribution channels, and exclusive sale agency. At the same time, Harley Davidson motor company start to produce the police motorcycle. Soon, the first world war had begun. Harley seize the opportunity, to sell the motorcycle in the market of war. The company have produced twenty thousand motorcycle for military. Harley has earn a lot of money during the first world war. Continue reading
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Do You Know History of Ikarus?
If you are bus model fans, you must be familiar with Ikarus, which was found in 1895 and at the beginning, its name is Uhri Imre Kovács- és Kocsigyártó Üzeme.
As for the city bus manufacturer located in Budapest, the capital of Hungary, in 1913, the company had concentrated on manufacturing cars and got fast development during the the First World War due to huge sales volume. In 1927, company got International payments and began to manufacture too many types of vehicles on a large scale, in the first batch of products, there are 60 shuttle buses. Continue reading
U.S School Bus’s Safety Factor is More Higher than Other Vehicles
When mentioning the U.S yellow school bus, you should not ignore its high safety factor. There is a story about U.S school bus.
on July 31, 2007, a bridge suddenly collapsed in Minnesota. At that time, it is the peak period of traffic so that more than 60 cars fell into the water. As a result, too many people were killed during this accident and most of them also got injury seriously. Among all these automotive vehicles, one school bus also fell into water, but fortunately only a few children was injured slightly and almost everyone in the school bus is safe and sound. Do you know why this happened?
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Ceramics Binding Agent and Metal Binding Agent
In addition to resin binding agent, there are also other binding agents such as ceramics binding agent and metal binding agent. More information about these binding agents are introduced in following article.
Ceramics binding agent
As for the advantages of ceramics binding agent, it has higher strength, and the heat resistance is better. At the same time, cutting effect is very sharp and cutting efficiency is very high. During the grinding process, it is not easy to be heated and blocked. Because of the limited thermal expansion amount, it is easy to control the grinding accuracy.
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Do You Know Knowledge About High Speed Steel
When talking about circular saw blades, it is common to hear the HSS saw blade, which is one of the important types among circular saw blades. Do you know the meaning of HSS? It is the abbreviation of High Speed Steel, which is the high alloy steel containing too many different chemical elements such as carbon, tungsten, molybdenum, chromium, vanadium and others and then processed with heat treatment. When the cutting and sawing temperature is up to 600 Celsius degree and above, its hardness still maintains the original condition, no obvious down trend. According to the different chemical components, powder high-speed steel mold can be divided into common powder high-speed steel mold and high performance high-speed steel. On the other hands, according to the different manufacturing techniques, it can be divided into the smelting high-speed steel and powder metallurgy high-speed steel. In China, the common manufacturing technique is smelting while in foreign countries the powder metallurgy workmanship is the main stream.
In the following article, I will introduce some basic knowledge about common powder high-speed steel, are you interested in this topic?
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