Tungsten-titanium alloy (WTi) is widely used in micromechanical manufacturing. The tungsten-titanium alloy thin films deposited by sputtering process have high density, moderate film stress, excellent surface smoothness, excellent thermal and chemical stability, so they are ideal materials for structural layer and sacrificial layer in the manufacturing of MEMS.

Strontium tungstate is a very important functional material in tungstate. It is widely used in many fields such as photoelectric materials, gas sensitive materials, photocatalytic materials, humidity sensitive materials and so on. It is well known that the properties of nanomaterials depend on the morphology and size of nanocrystals. Therefore, the preparation of strontium tungstate nanocrystals with special morphology is of great significance in theoretical research and practical application.

It is reported that the first China International Import Expo opened in Shanghai, China National Convention and Exhibition Center (Shanghai). Among them, the largest exhibit of the “volume” at this fair is a high-precision machine tool with a total weight of about 200 tons – Jinniu Longmen Milling Machine. It comes from one of the world's largest manufacturers of high-precision heavy-duty machine tools, Germany's WALDRICH-COBO Machine Tool Manufacturing Co., Ltd.

The high-precision machine tool manufacturing company was founded in 1920 and has a history of nearly one hundred years. However, in fact, the company was acquired by Beijing No. 1 Machine Tool Plant in 2005. Therefore, strictly speaking, this company should be a subsidiary of Jingcheng Mechanical & Electrical Holding Co., Ltd., a subsidiary of Beijing State-owned Assets Supervision and Administration Commission. In fact, the major domestic technology equipment processing plants, such as aerospace, ship engines, rail transit, etc., can often see the company's products.

According to reports, the precision of this high-precision milling machine is very high, reaching the industry's top level. This "big guy" has a positioning accuracy of 4 μm and repeatability of 6 μm. In addition, it belongs to the important strategic high-tech equipment that China encourages to import and subsidize funds.

However, such a large "volume" high-precision milling machine, "small one" carbide knife (hard alloy milling cutter) is indispensable. why? We can get the relevant information directly from the word "milling machine". Milling machines, as the name implies, are machine tools that use a milling cutter made of a hard alloy milling cutter to machine various surfaces of the workpiece. Specifically, what can the milling machine do? ——It can mill planes, grooves, teeth, threads and spline shafts, as well as more complex profiles.

Why is the tungsten carbide milling cutter usually used? Instead of other materials milling cutters? Because the current use of difficult-to-machine materials is increasing, and the requirements for the mechanical properties of materials are constantly increasing. In addition, the requirements for processing efficiency are gradually increasing. However, traditional blades do not accommodate these new requirements. In short, traditional blades do not meet the high demands placed on the modern machining industry – high precision, high speed cutting and lower cost. However, the carbide-coated blades have high hardness and excellent wear resistance, which can meet the increasing requirements of mechanical processing. That is to say, cemented carbide blades are gradually replacing traditional blades.

Why is this high-precision milling machine or will it help China's aerospace industry? Because of its high-precision machine tools, it has a wide range of applications in high-end equipment manufacturing such as aerospace, rail transportation, automobile manufacturing, mold industry and machine tool production. Among them, in the field of China's aviation industry, with the increase in the number of military aircraft and the advancement of commercial aircraft projects, China will have more than 3,000 new general-purpose aircraft. These aircraft, whether the military is commercial or commercial, the processing of many parts on the fuselage requires high-precision machine tools. Therefore, the carbide CNC blade has more room to play, and the role is quite large. It can be said that if the cemented carbide blade is missing, this German high-precision machine tool is like "a tiger with its teeth and claws pulled out", and you can't do it.

With the strategic goal of China's manufacturing powerhouse - "Made in China 2025" - gradually implemented, China will make breakthrough progress in the ten key areas, and aviation equipment is among them. Aviation equipment includes aircraft, aerospace engines and aerospace equipment and systems. In recent years, domestic market demand has become stronger and stronger, and the aviation industry is facing unprecedented development opportunities and a good environment. At the same time, China's cemented carbide industry restructuring and industrial transformation and upgrading will also be promoted.

However, it must be said that the world's leading CNC blade manufacturers are mainly distributed in Europe, the United States, and Japan. Among them, Sandvik, Kenner, Iskar, Mitsubishi, Kyocera, Sumitomo and other six companies have occupied more than 90% of the domestic market share of cemented carbide CNC blades. This means that while developing high-precision machine tools in China, we must also accelerate the development of hard alloy CNC blades. Because, as we all know, modern CNC high-precision machine tools will generally be equipped with a series of tool products, which means that “the knife will not cut the woodwork” and the “worker must first sharpen its tools”, and also have the “knife” first. And "the device." Without this hard alloy knife, no matter how high-precision the machine tool can only be an axe without a blade, it is white, that is, a wooden stick. All know that wood cut trees, can not be used, the relationship between high-precision machine tools and hard alloy knives is also a rational. Therefore, in the process of promoting the rapid development of China's aerospace industry, CNC blade, as the ultimate product of the tungsten industry chain, also serves as the raw material and processing equipment material for aerospace equipment, not only accelerates the transformation and upgrading of the tungsten industry in China, but also enters the world. The symbolic products of the tungsten industry is also an indispensable indicator of China's manufacturing from a big country to a manufacturing power.

From rocket engines to all kinds of maritime hair, have countries been smashed "card necks"? This is a big proposition and a small proposition. First of all, let's talk about the Long March. As we all know, the Long March 9 carrier rocket is a new generation of heavy rockets being developed in China. It is a "sci-fi level" and will be used for deep space exploration, manned moon landing and fire, space infrastructure construction, etc. First flight between 2028 and 2030. This, time, and a little bit, let us first look at the exciting news of the neighborhood. According to Zhang Zhi, chief designer of the Long March 9 rocket, as a member of China's new generation of launch vehicles, the Long March 9 will be introduced to everyone at this year's Zhuhai Air Show. In this regard, the author wants to talk about aviation engines.

Recently, the Qingdao Metro Line 1 cross-harbour tunnel has been successfully penetrated. What is its “home position”? It laid a solid foundation for the completion of the entire line of Qingdao Metro Line 1 on schedule. It is reported that the total length of the cross-sea tunnel of Qingdao Metro Line 1 is 8.1 kilometers, of which the length of the cross section is about 3.49 kilometers. After the completion of this subway, it will greatly shorten the transit time from Qingdao Huangdao District to Qingdao's main city. This means that people who live on this small island with the characteristics of “red house green trees” have more travel plans. As a result, these small island inhabitants also have more time to enjoy the scenery and see what kind of exotic buildings are known as the “World Architecture Exhibition”.

The near-anti-aircraft is a short-range defensive weapon. It is mainly used to intercept anti-ship missiles and rockets, missiles or aircraft that attack our ships. It can also shoot at sea targets. It is the last barrier of military defense. Therefore, it is necessary to kill and completely destroy the weapons and equipment. Otherwise, they will still cause damage to our army by virtue of superior inertia and kinetic energy. Based on this situation, it is necessary to use the most lethal projectiles. China's near-anti-guns generally use tungsten alloy armor-piercing projectiles. Some people may ask: Why not use depleted uranium bombs, high-explosive bombs, training bombs, steel core bombs, grenades and other shells, and only have a special liking for expensive tungsten alloy armor-piercing bullets?

In our lives, stainless steel can be said to be everywhere, from pots and pans in kitchen utensils to instruments in industrial production, etc., there are countless feelings. However, how does the performance and use of molybdenum change after adding it to stainless steel?

The molybdenum-containing stainless steel mainly has several grades such as 316 molybdenum stainless steel, 316L molybdenum stainless steel and 317 molybdenum stainless steel. Next, let's take a look at the grades, properties, and uses of this molybdenum-containing stainless-steel material.

At present, a variety of home improvement styles can be described as endless, what simple style, rural style, French style, European style, Mediterranean style, Southeast Asian style, post-modern style, fashion mix and match style and Japanese style and so on! Of course, these styles may not be able to satisfy your full retro feelings. Then, can the retro tungsten lamp gradually infiltrate your thoughts that are going back to good times?

In recent years, the accuracy requirements of machine tools for machine tool processing have been continuously improved with the continuous development of China's manufacturing industry. Among them, the precision requirements of wire cutting machine tools are the most urgent. In the online cutting industry, the mainstream “medium wire” is widely used in the fields of mold making, precision small parts, special materials, cams, forming tools and sample processing, because this machine is used to process certain parts. This not only saves time in making stamping dies, but also shortens cycle times and reduces production costs.

Many people will travel to Switzerland to buy expensive accessories, such as "unknown, expensive" Swiss watches (Rolex) and so on. You may know that Swiss law has very strict rules on what is “Swiss Made” and “Swiss Made” watches – the movement uses the “Swiss Movement” logo, the quartz label is “Swiss Quartz”, and the watch box is also marked. On the "Swiss Case", even the strap must have "Swiss Strap". It can be said that a real Swiss watch, there is a "Swiss" logo on the body, I am afraid that we do not know that it is Swiss-made. However, I don’t know if you know that the material of these ornaments, tungsten steel, is not produced in Switzerland, but it is actually produced in China. However, it cannot say "speaking hard", "In fact, I am also from China!".