Category: News

What better way to start the year than with new services to add to our already long list of capabilities? How else to bolster our EDM offerings than adding the newest and latest in machines? With the introduction of the Sodick AQ5371 Wire EDM machine, Astro Machine is doing just that.

As EDM work has only been a service we have worked with for the past twelve to fifteen months, it is an area in which we would like to expand our expertise. Therefore, it was time for us to enhance the scope of our capabilities. With the Sodick AQ5371, our EDM services become faster and more accurate. Here are some additional features we can share:

Linear motors: This product range is specifically known for its linear motor technology. Linear motor drives allow for instantaneous data transmission and accurate positioning, and they eliminate any backlash or vibrations. Combined with a motion controller, the linear motors also provide high-speed cutting.

Advanced control panels: A combination of keyboard controllers, remote controllers, 3D solid model direct imports, and LP power supplies provides an advanced control panel for any user.

Automatic wire threading: This machine is equipped with a wire anneal function on top of the existing pipe jet. This allows for a range of threading options, without sacrificing speed or accuracy.

What are some of the specifics? With a maximum X, Y, and Z axes travels of 570mm x 370mm x 350mm, and maximum flush machining sizes of 770mm x 520mm x 340mm, our new EDM machine will bring us advanced skills, as well as greatly improve our EDM department. We hope to be on our way to becoming EDM experts!

Categories: Uncategorized

Molecular sieve 4A, a type of crystalline aluminosilicate material, have gained significant recognition for their ability to adsorb moisture and other polar molecules from gases and liquids. This article explores the specific application of 4A molecular sieves in air dryers, highlighting their crucial role in maintaining dry and moisture-free air in various industrial processes.
 
Compressed Air Drying:
Air compressors often generate moisture-laden air due to the presence of water vapor. Moisture in compressed air can lead to corrosion, equipment malfunction, and compromised product quality. Molecular sieve 4A are employed in compressed air dryers to selectively adsorb water molecules, effectively reducing the dew point and ensuring that the compressed air remains dry and moisture-free. This application is essential in industries such as manufacturing, automotive, and electronics, where dry air is vital for process reliability and product integrity.

Instrumentation and Control Systems:
Sensitive instrumentation and control systems are susceptible to damage and inaccuracies caused by moisture. 4A molecular sieves play a critical role in protecting these systems by removing moisture from the air supply. In applications like laboratories, pharmaceutical production, and food processing, where precise measurements and control are essential, the use of 4A molecular sieves in air dryers ensures the reliability and accuracy of these systems.
 
Painting and Coating Processes:
Moisture in the air can adversely affect the quality and appearance of paint and coatings. In industries such as automotive painting, furniture manufacturing, and aerospace, maintaining a dry environment is crucial for achieving consistent and flawless finishes. 4A molecular sieves help prevent defects caused by moisture-related issues, ensuring that the painting and coating processes yield high-quality results.
 
Pneumatic Systems:
Pneumatic systems, which rely on the controlled use of compressed air, can experience reduced efficiency and increased wear due to moisture. 4A molecular sieves are integrated into air dryers in pneumatic systems to remove moisture, preventing corrosion and ensuring smooth operation. Industries such as automation, packaging, and material handling benefit from the enhanced performance and extended lifespan of pneumatic components achieved through the use of 4A molecular sieves.
 
Food and Beverage Industry:
In the food and beverage industry, maintaining dry air is essential to prevent spoilage, preserve flavor, and ensure product safety. 4A molecular sieves are employed in air dryers to remove moisture from the air used in food processing, packaging, and storage. By controlling humidity, 4A molecular sieves contribute to extending the shelf life of products and maintaining their quality.
 
The application of 4A molecular sieves in air dryers plays a vital role in various industries by effectively removing moisture and maintaining dry air. From ensuring the integrity of sensitive control systems to enhancing the quality of finished products, 4A molecular sieves contribute to improved efficiency, reliability, and overall performance. As industries continue to prioritize precision and quality, the use of 4A molecular sieves in air dryers remains a key solution for achieving moisture control and optimal operational outcomes.

Alumina ceramic lining plays an important role in the industrial field. It has the characteristics of high temperature resistance, corrosion resistance, wear resistance and so on, so it is widely used in electric power, steel, metallurgy, cement and other industrial fields.

Alumina ceramic liner is made of aluminum oxide as the main raw material, which is formed and sintered at high temperature, and has excellent characteristics and advantages. First of all, it has good chemical stability, can resist acid, alkali and other corrosive media erosion; Secondly, alumina ceramic liner has the characteristics of high temperature resistance, generally can withstand temperature of about 1000℃, can maintain stability and integrity in high temperature environment; In addition, alumina ceramics also have good insulation properties, wear resistance and mechanical strength, so that it is widely used in industrial production.

Alumina ceramic liner is widely used in electric power, steel, metallurgy, cement and other industrial fields. In the power industry, it is often used in the boiler lining and chimney wall of thermal power plants, etc., because of its high temperature resistance and wear resistance, it can effectively prevent the high-temperature flue gas inside the boiler from damaging the equipment; In the steel industry, alumina ceramic lining plate is often used in the lining of the bin hopper, which can resist the wear of the material and extend the service life of the equipment; In addition, it can also be used as an acid-resistant reactor liner, which is widely used in the chemical industry.

With the development of modern industry, the demand for wear-resistant, high-temperature and corrosion-resistant materials is increasing. As a kind of high-performance ceramic material, alumina ceramic liner is expected to play a greater role in the future, providing a more reliable guarantee for industrial production.

The consumable cost of mining enterprises accounts is the largest proportion of the total cost of mines, how to reduce the cost of mine consumption has always been an issue in the entire mine field. Ceramic balls have been used as grinding media in fine grinding for many years. They are mainly used in high-speed rotary fine grinding equipment, such as ISA grinding, Smith VXP grinding, Metso SMD grinding, etc. These devices are characterized by high speed between media. The speed difference formed by the motion produces a grinding action to grind the material. The vertical spiral agitating mill mainly relies on the low-speed rotation of the spiral agitator to drive the pressing force and shearing force generated by the grinding media to grind the material. The density of the media is one of the main factors affecting the grinding effect.

High-chromium steel ball is a traditional grinding medium for vertical mixing grinding in mining industry, it has high hardness and good wear resistance. Ordinary ceramic balls are lighter in density and have a lower hardness. With the advancement of wear-resistant materials technology, a new type of nano-ceramic ball based on alumina or zirconia has emerged in recent years. Chemshun Ceramics can produce ceramic grinding media with new type of nano-ceramic balls with alumina and zirconia material.

Collect below advantage of ceramic grinding media for your reference:

1. Energy saving

Under the same grinding process conditions, the quantity of ceramic grinding media is large, but the total mass is small, and the energy saving effect is very obvious.

2. Reduce the consumption of produced media
Through calculation, the yield of medium-produced medium steel ball is 0.68~0.11 kg/t, while the consumption of ceramic grinding media is 0.052～0.063 kg/t, which is calculated by the price of ceramic ball 35 000RMB/t and high chromium forging ball 7 800RMB/t. After changing to ceramic balls, the cost of production per unit of production can be reduced by about 65%.

3. Prolong the service life of spiral liner
After replacing with ceramic ball media, the life of the vertical mill spiral liner will increase.

4. Shorten single inspection time
The ceramic ball has uniform hardness inside and outside, and it is always in a spherical state after wear, and the surface is smooth. However, due to its uneven hardness, the steel ball has irregular polygonal bodies after wear, which determines that the ceramic ball is more easily discharged from the volleyball, which can effectively shorten Volleyball time. After the grinding door is opened, due to the light density of the ceramic ball, the labor intensity of manually removing the remaining sphere at the bottom is lower than that of the steel ball.

5. Reduce iron impurity pollution
For most non-metallic minerals, the impurity content, especially iron, determines the quality grade of the product. Many non-metal grinding processes are used to reduce iron impurities, and iron removal is usually carried out during processing. If ceramic grinding media is used in the fine grinding stage, the iron impurity contamination can be effectively reduced.

Ceramic grinding media is your best choice for mining industry, to meet the market requirement of different milling applications, Chemshun Ceramics developed a range of ceramic grinding media with broadest range of sizes and densities are available to suit both horizontal and vertically mills for fine &ultra-fine grinding, mix and dispersing. If you have any requirement of ceramic grinding media for mining industry, welcome you contact us any time.

October 1, 2020 is the 71st National Day of the People’s Republic of China, and this day happens to be the Mid-Autumn Festival in 2020. People across the country will enjoy the National Day holiday from October 1-8.

During the National Day and Mid-Autumn Festival, as the current situation of the prevention and control of the new crown pneumonia epidemic is stable, people begin to travel out and visit the scenic spots or shopping. At the same time, because the traditional Mid-Autumn Festival is a day of reunion, most people choose to go back to their hometown to reunite with their families and enjoy the joy of family love.

During the National Holiday in 2020, people all over the country spent a happy and peaceful holiday. Thanks to our great motherland for protecting us, we can have happy life today. After experiencing COVID-19, we have learned to cherish life,health and peace. May our motherland get better and better! May people all over the world be healthy and safe.

本教程适用版本：WPS 365 点击免费使用

本教程适用版本：WPS Office 2019 PC版  点此使用

在利用Excel表格进行日常办公时，经常需要在表格当中进行汇总求和操作，但很多用户会遇到一个问题，那就是当数据带有单位时，不能成功完成求和工作，今天小编就来教大家如何在Excel表格当中带单位求和，具体怎么操作呢，一起来学习一下吧。

首先，在表格当中输入需要求和的数据，如下图所示：

>>免费升级到企业版，赠超大存储空间

在F2单元格当中，输入公式=SUM(–SUBSTITUTE(C2:E2,”分”,””))&”分”， 注意接下来不能直接单击回车，要按组合快捷键Ctrl+Shift+Enter，如下图所示：

>>免费升级到企业版，赠超大存储空间

单击快捷键后可以看到，总成绩即可计算完毕，下拉单元格填充框，完善整个表格，如下图所示：

本教程适用版本：WPS Office 2019 PC版  点此使用

Feb
12

From the NAW Blog:

How do you plan when all certainty has gone out the window more than once in the past year? Even with an end to the pandemic in sight, distributors may be looking at their 2020 business plan and wondering if it’s even worth putting a plan together for 2021. It’s tempting to stay light on your feet and be ready to pivot.

READ MORE

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Austin Jones, Welding Supervisor at Astro Machine Works, has achieved the AWS (American Welding Society) Certified Welding Inspector (CWI) certification. The American Welding Society (AWS) Certified Welding Inspector (CWI) certification involves great responsibility and remarkable skill demonstration in the determination of weld quality according to applicable codes. Welding inspection goes way beyond simply looking at welds. A CWI must have a wide range of knowledge and skills including, but not limited to the following:

• Knowledge of drawings and specifications
• Knowledge of welding terms
• Knowledge of welding processes
• Knowledge of testing methods
• Training in engineering and metallurgy
• Welding experience
• Ability to maintain good records
• Ability to understand and apply documents describing weld requirements

To qualify as a CWI, Austin was required to meet a combination of qualifying education and work experience, along with demonstration of competence through an intense examination process.   The CWI is widely recognized, both nationally and internationally, and many successful companies have come to rely on this AWS certification when ensuring the highest level of quality workmanship.  AWS is the worldwide leader in certification programs for the welding industry.We are committed to our customers and we could not continue this growth without the dedication of our manufacturing team.  In 2018 we became a 100% ESOP Company , helping to create a work environment that promotes longevity and growth.

Astro Machine Works’ modern manufacturing facilities total approximately 72,000 square feet.  In addition to CNC Machining we are known for our Manufacturing of Custom Automated Machinery and Machine Repair & Rebuild capabilities.  Our shop has full-service Contract Manufacturing capabilities with Fabrication, Welding, Assembly, Finishing and Testing, Wire EDM, and Surface Grinding, In-house Panel Wiring, Parts Replacement including Reverse Engineering.  We value the highest quality production standards and are certified to ISO 9001:2015 and AS9100D.

Categories: Press Releases

Ceramic forming is an important part of the ceramic preparation process, the forming technology to a large extent determines the uniformity of the body and the ability to prepare complex shaped parts, and directly affects the reliability of the material and the cost of the final ceramic parts.

3, Injection molding
Ceramic injection molding is a new process for preparing ceramic parts, which is developed by combining polymer injection molding with ceramic preparation technology.

The manufacturing process of ceramic injection molding mainly includes four links:
① The suitable organic carrier and ceramic powder are mixed, dried and granulated at a certain temperature to obtain a mixture for injection;
② The injection mixture after mixing is heated into a viscous melt in the injection molding machine, injected into the metal mold at a certain temperature and pressure at high speed, cooled and solidified into the desired shape of the billet, and then demoulded;
③Degreasing: by heating or other physical and chemical methods, the organic matter in the injection molding body is removed;
④ Sintering: the ceramic blank after degreasing is densified and sintered at high temperature to obtain the dense ceramic parts with the required appearance shape, dimensional accuracy and microstructure.

 

Advantages of injection molding:
① can be directly made into various shapes of complex small ceramic parts, reduce the cost of expensive ceramic processing.
②High degree of mechanization and automation, short production time, only a few tenths to a few hundredths of the time used for pouring molding and hot pressing molding. And can be automated production, production process management and control is also very convenient, suitable for mass production.
③ Due to the good fluidity of the binder, the density of the injection molding billet is quite uniform.

Application: This technology has the most advantages for mass production of ceramic products with high dimensional accuracy and complex shapes. At present, ceramic injection molding has been widely used in various ceramic powders and various engineering ceramic products. Various precision ceramic parts prepared by this process have been used in aviation, automobile, machinery, energy, optical communication, life medicine and other fields.

4, Isostatic pressing

At present, isostatic pressing is the main forming method for producing alumina ceramic balls.

Hot isostatic pressing process is to apply high pressure (50-200MPa) and high temperature (400-2000℃) to the outer surface of the machined parts by inert gases (such as argon and nitrogen), and the increased temperature and pressure make the material through plastic flow and diffusion to eliminate the gap under the surface. The hot isostatic pressing process can achieve a uniform and fast cooling process through thin-wall prestressed winding units, and the production efficiency is increased by 70% compared with the natural cooling process.

The cold isostatic pressing process can apply higher pressures to ceramic or metal powders, up to 100-600 mpa at room temperature or slightly higher temperatures (< 93 ° C), and sintered to final strength. Hot isostatic pressing and cold isostatic pressing technologies allow ceramic manufacturers to increase productivity while controlling material properties.

At present, cold isostatic pressing technology is widely used in daily ceramics, architectural ceramics, special ceramics and other fields. For example, plates, dishes, alumina grinding balls, alumina chemical packing balls, firebricks, ceramic sticks, spark plugs, high-frequency porcelain sleeves, composite ceramics, etc.

Advantages of isostatic pressing:
① The pressure is transmitted from all directions, the compact density is evenly distributed, and the compact strength is high;
② The density of the blank is high, the uniform defect is less, and the firing shrinkage is lower than that of the general dry;
③ It can press parts with concave shape, slender parts and other complex shapes;
④ Low friction loss, low forming pressure;
⑤ Low mold cost.

Disadvantages of isostatic pressing: it is not easy to accurately control the size and shape of the billet, and the productivity is low, and it is not easy to automate.

See the next article for the remaining several structural ceramic molding processes.

Nitrogen is familiar to everyone, with oxygen accounting for about 21% of the air and nitrogen reaching at least 78%. So how can we effectively extract nitrogen from the air and even improve the purity of nitrogen to the highest level? Now let me introduce you an indispensable adsorbent: carbon molecular sieve.

Carbon molecular sieve belongs to carbon adsorbent, and its ability to separate air depends on the different diffusion rates or adsorption forces of various gases in the micropores of carbon molecular sieve. When carbon molecular sieve enters the adsorption tower, its adsorption capacity for oxygen and nitrogen is similar, but the diffusion speed of oxygen molecules is much faster than that of nitrogen molecules. Therefore, carbon molecular sieve air separation for nitrogen production is based on this performance, and nitrogen is separated from the air through the PSA process flow? So how to choose carbon molecular sieves?

As well known, there are both imported and domestically produced products, and our carbon molecular sieve is no exception. The main difference between imported and domestic carbon molecular sieves is the nitrogen production rate and recovery rate. The nitrogen production rate refers to the amount of nitrogen gas produced per ton per hour; The recovery rate is the amount of air consumed. There is still a gap between domestically produced and imported carbon molecular sieves, but considering the price, I personally think that domestical produced ones have a higher cost-effectiveness. The market price varies according to the nitrogen production rate, which is often reflected in the types, such as carbon molecular sieve 220, carbon molecular sieve 240, carbon molecular sieve 260… carbon molecular sieve 330). Normally, the price of imported carbon molecular sieves is twice or more than that of domestic molecular sieves. As an occasional buyer, if you want to buy a cost-effective and stable quality carbon molecular sieve, you must advise the seller of the process of your nitrogen generator, the required amount of carbon molecules, and the final gas flow rate and N2 purity achieved. Using this as the assessment standard to purchase carbon molecular sieves, otherwise, if you disregard the process, gas volume, purity, and weight to buy carbon molecular sieves, you will only be a scapegoat. Currently there is a market where low type carbon molecular sieves are used as high type carbon molecular sieves for sale, but users are unable to assess them. Therefore, it is necessary for everyone to keep their eyes open and discuss technical issues with carbon molecular sieve manufacturers in order to purchase satisfied adsorbent carbon molecular sieves.

OIM Chemical is a professional manufacturer specialized in adsorbents and ceramic balls. We have excellent R&D and technical personnel rooted in this field for many years, while providing effective solutions for domestic and foreign buyers. Welcome new and regular customers to explore together.