Author: William

How to repair the fault of oil press

What is an oil press?

How does it work? What is its main function? It is mainly a transmission method that uses liquid pressure to transmit power and control. At present, it is widely used in spare parts processing, various professions, a variety of product finalization, edge punching, etc. It has many functions, so it has a wide range of applications. When the equipment is used, equipment failure is inevitable. Therefore, the corresponding faults should be repaired in time.

The same components on the oil press of the same type, structure and principle should be installed in the same position. The main purpose is to prove whether the replaced components work reliably. The advantages of replacement method are that the technical level of repairmen is low, and this method can also be used to make accurate diagnosis of equipment faults.

At the same time, during maintenance, it is also necessary to diagnose whether the hydraulic components of the equipment are defective with the help of simple auxiliary parts.

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Kickstart: Aid for flood victims

Global plastics companies have been responding to help regions hit with catastrophic flooding in Germany, Belgium and the Netherlands as well as China earlier this month.Twenty members of Klöckner Pentaplast Group’s Montabauer fire department spent 48 hours in the Ahrweiler, Germany, region, rescuing people, pumping out cellars, removing mud and “simply lending an open ear for those affected,” .LyondellBasell Industries has donated 250,000 euros ($283,000) to the German Red Cross to help German communities hit by the flood. In addition, it said it will match each euro donated by its employees.French materials company Solvay is adapting its Solvay Solidarity Fund — initially created to help with the response to COVID-19 — to provide financial aid and volunteer time to respond to flooding in both Europe and China.It has been in contact with 200 employees in the impacted acreas and will provide up to 2 million euros ($2.3 million) in aid.”We were shocked by the magnitude of the disaster and quickly mobilized to support colleagues and local communities that were affected,” CEO Ilham Kadri said. Barrel and screw maker Xaloy Holdings LLC says nearly all of its employees in Thailand are in the process of being vaccinated against COVID-19.In a social media post, Xaloy was able to provide free Sinopharm vaccine doses to 198 employees along with their families. were administered in the last few days at Chularat Cholvej Hospital in Chonburi, and the Xaloy staff should be fully vaccinated by mid-August.Like many other countries, Thailand has seen a spike in COVID cases and deaths since late spring. About 11 percent of Thailand’s population has been fully vaccinated, according to Reuters. As people resume travel plans, the United Nations Environment Programme is out with a report pointing to ways to reduce single-use plastics within tourism.Travel and tourism is an $8.8 trillion global industry, .”Its role in job creation and lasting positive social impact is immense,” the group notes in its introduction. “However, without a healthy and thriving environment, the sector and our planet cannot survive.”The report looks at research by UNEP and the World Travel & Tourism Council to better reduce single-use plastics that end up impacting the environment.”Rethinking [single-use plastics] and eliminating their use cannot be done in isolation by one industry or one individual business,” the reporter notes. “It requires every travel and tourism sector stakeholder, from consumer to decision makers, to make more informed choices and act.”Beyond single-use water bottles, the tourism industry can support more sustainable travel options with refillable bottles, shower caps made with biodegradable plastics and slippers tied with a ribbon rather than being placed into Plastic bags. Do you have an opinion about this story? Do you have some thoughts you’d like to share with our readers? Plastics News would love to hear from you. Email your letter to Editor at Staying current is easy with Plastics News delivered straight to your inbox, free of charge. Subscribe to Plastics News Plastics News covers the business of the global plastics industry. We report news, gather data and deliver timely information that provides our readers with a competitive advantage.Customer Service:

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What Are The Advantages And Disadvantages Of Wearing A Mask For A Long Time

The advantages and disadvantages of wearing a mask for a long time as following:

Advantages: masks can prevent dust and sand from entering the mouth, and wearing masks can also prevent the flow of pathogens. In hospitals, doctors and nurses in wards with almost infectious potential are wearing masks. In cold weather, masks can be worn to prevent nose from freezing

The disadvantages: if the air quality is good, the mask will affect the inhalation of fresh air. Wearing a mask for a long time also has a certain impact on breathing. Oxygen after the mask filtration, it is inevitable to get infected with the bacteria of the mask itself, that is, the harmful bacteria that have been filtered before. The mask is only suitable for temporary avoidance of dust and epidemic bacteria, not suitable for long-term wear.

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Advantages of LXSHOW fiber laser cutting machine

Advantages of machine fiber laser cutting: 1530 fiber laser Cutting Machine can obtain better cutting quality because of the small laser spot, high energy density and fast cutting speed. The cutting slit of the laser cutting machine fiber 2kw is very thin and narrow, the two sides are parallel and perpendicular to the surface, and the dimensional accuracy of the cutting parts can reach ±0.05mm.

The cutting surface is clean and tidy, and the surface roughness is very low, only tens of microns. Laser cutting can be used as the last process without mechanical processing, and the parts can be used directly. After laser cutting, the width of the heat-affected zone is very small, and the performance of the material near the slit is almost unaffected, and the workpiece has small deformation, high cutting accuracy, good geometry of the slit, and the cross-sectional shape of the slit is relatively regular Rectangle.

High cutting efficiency: Due to the transmission characteristics of the laser, the fiber optic laser cutting machine is generally equipped with multiple numerical control worktables, and the entire cutting process can be fully controlled. The cutting speed is fast, and the material does not need to be clamped during laser cutting, which not only saves tooling fixtures, but also saves auxiliary time for loading and unloading.

Non-contact cutting: There is no contact between the torch and the workpiece during laser cutting, and there is no tool wear. To process parts of different shapes, you only need to change the output parameters of the laser. The laser cutting process has low noise, low vibration and no pollution.

There are many types of cutting materials: Compared with oxyacetylene cutting and plasma cutting, there are many types of laser cutting materials, including metal, non-metal, metal-based and non-metal-based composite materials, leather, wood, and fiber. But for different materials, due to their own thermophysical properties and different absorption rates for lasers, they show different laser cutting adaptability.

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6 major elements of choosing a stone cnc router Upload to:08-24 2021

  Stone cnc router are widely used in many industries, but how much do we know about the choice of stone cnc routers? Today, the editor of China will take you to learn about the choice of stone cnc router

  1. To understand the performance and function of the stone cnc router motor, the engraving head motor of the cnc router is also very important, because the engraving head motor is generally not covered by the warranty, and the engraving head motor works continuously for a long time, so if you engrave A bad head motor will also affect the use of the cnc router.

  2. Pay attention to the function of the stone cnc router. The engraving motor of the cnc router has high power and low power. Some cnc routers with low power are only suitable for the processing of materials such as two-color boards, architectural models, small signs, three-dimensional crafts, etc. This technology has been popular for some time, but the engraving power is too small and its application range is greatly affected. The other is a high-power engraving head cnc router, this kind of cnc router is divided into two categories, one is a large-format cutting machine: the format is generally more than one meter, but the accuracy of this kind of cnc router is generally poor; the other The class is an cnc router with moderate format: this kind of cnc router is generally used in fine processing and organic sign production.

  3. In addition, the speed adjustable range of the engraving head motor, the general adjustable speed range is several thousand to 30,000 revolutions per minute. If the speed is not adjustable or the speed adjustable range is small, then the application range of the cnc router is limited. Subject to great restrictions, because different materials must be engraved with different engraving head speeds.

  4. The manufacturing process of the cnc router body: When the high-power cnc router is working, the body must be precise and stable. Therefore, the casting body should be used for long-term high-power engraving to ensure its processing accuracy and stability.

  5. Controllers are generally divided into two categories: the first type of controllers is only used for driving, and all calculation work is done by the computer. When the cnc router is working, the computer is in a waiting state and cannot perform typesetting work. Another type of controller is controlled by a single-board computer or a single-chip computer. This controller is actually a computer, so as long as the cnc router starts to work, the computer can immediately perform other typesetting work, especially when engraving for a long time. The advantages are particularly obvious.

  6. The screw rod and guide rail are also an important part of the stone cnc router. A good screw rod and guide rail are the guarantee of the accuracy and performance of the cnc router when it is used for a long time.

  Generally, when choosing a stone cnc router, we look at these six aspects. It is enough to choose the model that is suitable for your use. For more relevant information, you can continue to pay attention to us. The China editor will update you with more product knowledge. Please look forward to it.

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Solution to invalid operation of hydraulic press

1. Wear

The hydraulic valve core, valve sleeve, valve body and other mechanical parts have friction between the movement pairs during use, which makes the size, shape and surface quality of the parts change and fail. These may make the valve fail.

2. Fatigue

Working under long-term variable load, the spring in the hydraulic valve will become soft due to fatigue, shorten the length of the spring, or break completely; the valve core and valve seat will also be cracked, peeled or damaged due to fatigue. The spool of the reversing valve is bent and deformed, which will make it difficult for the reversing action of the valve to proceed normally. The relief valve pilot cone valve (or pilot small ball valve) is not tightly sealed due to wear and cannot be adjusted normally. The wear of the pilot valve of the pressure reducing valve will make the valve work unstable and even unable to regulate the pressure. Fatigue or broken springs on the main slide valve or pilot valve of the relief valve will make the system pressure less than required. If the matching clearance between the valve core and the valve hole is too large, pressure shock will occur. The spool of the overflow valve is bent and deformed or the spring is deformed, which will make the spool move inflexible and cause the system pressure to be unstable.

3. Deformation

When the residual stress of hydraulic valve parts during processing and the external load stress during use exceed the yield strength of the material of the parts, the parts will deform and fail to complete their normal functions. If the spring of the reversing valve of the Hydraulic Press is too soft or short, it will affect the spool working position and normal reset, making the system unable to work normally. Note that improper assembly may also cause deformation of the parts. For example, the valve body deformation caused by the reversing valve assembly screw is tightened too tightly, which may cause the valve core to jam.

4. Corrosion

Excessive water or acidic substances mixed in hydraulic oil will corrode the relevant parts in the hydraulic valve after long-term use, causing it to lose its due accuracy and become invalid. The abrasion or deformation of the valve core of the electromagnetic reversing valve will cause the valve to leak and reduce the efficiency, and the dirt will easily enter the gap or deformation, so that the valve core will be blocked by the gas. The bending and deformation of the spool of the unloading valve will slow down the action of the spool, and make the conversion process of the system from unloading to working pressure or working pressure to unloading slow. The one-way valve of the one-way throttle (speed control) valve is partially worn and the seal is not tight. Part of the oil flow will flow away through the one-way valve, which affects the sensitivity of the speed control.

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Externally and Internally heated Hot drops

Externally heated Hot drops

With this type of hot drop, the polymer is totally enclosed by a heated up tube. Most of surfaces with the melt channel ID are kept inside the preferred melt heat. Heat run out of outside to the facility effects with a homogeneous melt temp across the melt channel “dia”. This enables for excellent heat manipulation, minimizing the potential for polymer degradation or crystallized polymer caused by poor heat manipulation. Excellent thermal manipulation at the tip of the hot drop is essential to proper operation of this model of technique. There is known as a fairly tiny distance between the underside from the hot drop, kept at the required melt temperature, as well as the cavity surface, which need to be cooled off to the required mould tool temperature.
Heat switch out of the heated drop towards the surrounding tool stainless steel is minimized with an insulated gap in the annular space between the hot drop as well as the custom mold steel. Several techniques allow the molten polymer to move directly into this gap and serve as the insulating polymer. This is not recommended with Eastman polymers, as this polymer can diminish and result in black specks or brown streaks within the casted parts. A more desirable solution is to employ a high heat insulating polymer such as Vespel to fill this gap. A cooling circuit or water jacket in close proximity towards the gates is also wanted for heat removal.
Plumbing this circuit independent from a few other impressions cooling channels can be beneficial, as standalone water heat manipulation can be utilized to optimize molding performance in either the gates region and also the mould impressions. Several manufacturers offer distinctive thermal tip styles for this kind of hot drop strategy. Generally speaking, full-flow open-tip styles are suggested for most Eastman polymers. Styles which includes a ‘spreader tip’, blueprint can be problematic with a number of with the faster crystallizing polymers. Discuss with with supplier’s Blueprint Services for thermal tip suggestions for specific material grades.

Internally heated Hot drops

Internally heated up probe-type methods are not suggested for all the polymers. With this category of hot drop, the polymer flows down the annular space among the OD of the heater probe and the ID from the melt channel. Heat generated through the internal probe moves out through the probe into the melt.
A thin layer of polymer freezes about the colder metal on the melt channel ID. Higher probe heat setpoints are normally demanded to keep the melt channel from freezing completely. The combination of the frozen layer and higher heat setpoints can result in material degradation and problems maintaining consistent processing condition setpoints. Degraded polymer generally outcomes in black specks or brown streaks within the molded parts with this kind of strategy.

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Metal cutting-a good helper for the home event

The theme of Milan International Furniture Fair is living nature-“Symbiosis with Nature”, reconciling people and natural environment Milan International Furniture Fair is recognized as one of the world’s three major furniture exhibitions, known as the “Olympic” event of the global furniture industry. The relationship between the boots and the beauty of harmony between inside and outside.At home booths such as kitchens and bathrooms, the versatility of products is highlighted, and the appearance is more concise. The design of cabinets breaks the shackles of inherent functional positioning and carries out innovative designs different from conventional concepts.

The use of enhanced cabinet functionality tends to cause sharp edges, burrs, and burrs on the cutting edge of the cabinet compared to the traditional machining process, which affects the appearance of the finished product. The fiber laser Cutting Machine 3015 can avoid similar situations. Fiber laser cutting machine 1530 has the advantages of high cutting quality, narrow length, small heat-affected zone, and smooth longitudinal direction; fast cutting speed; good cutting flexibility, free cutting of any shape; low processing cost and wide material adaptability. Precision fiber laser cutting machine has been widely used in the processing of metals and non-metals, and has become the “sword” that people dream of “cutting iron like mud”.

Now cabinet materials are converted into metal materials-sheet metal, because sheet metal has the characteristics of light weight, high strength, electrical conductivity (can be used for electromagnetic shielding), low cost, and good mass production performance. In the field of sheet metal cutting, 3000w fiber laser cutting machine has become the mainstream processing method, from ultra-thin plates at the micron level to thick plates of a few millimeters, which can be effectively cut.

At the same time, it is necessary to reduce the waste of processing materials and shorten the processing cycle, and the processing efficiency is high and the quality is good, which can achieve efficient processing. In a sense, fiber laser cutting machine tube plate has brought a technological revolution to sheet metal processing, and this has also brought more possibilities to the design of cabinets.At the same time, steel cooper laser fiber cutting machine can design graphics through the computer, make arbitrary graphics, adjust the size and depth, high precision, fast speed, smooth and no burr, “no contact” processing process, so that any material does not have to worry about extrusion Deformed.With the development of the home furnishing industry, more and more merchants will realize the new layout brought by the laser cutting technology, and the laser cutting technology has become more and more a powerful assistant in the home furnishing industry.

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Innovation changes the future, 3D printing is indispensable-Interview with Mr. Jos Burger, CEO of Ultimaker, a leader in desktop 3D printing

In February of this year, Ultimaker, a global desktop 3D Printing leader, announced that Essentium, eSun and Polymaker have joined the “Ultimaker Materials Alliance Program” (Materials Alliance Program), which will further bring a variety of FFF desktops to more industries 3D printing materials and application selection. Ultimake was established in the Netherlands, with offices in New York, Boston and Singapore, and factories in Europe and the United States.

The global team has more than 400 employees and more than 50 distributors all over the world. It is hard to imagine that a company of this size was founded in 2011. In just a few years, the product categories include 3D printers, materials and software, and application cases are spread across multiple industries, such as construction, aerospace, and automobile manufacturing. “3D Printing World” had the honor to interview Ultimaker CEO Jos Burger to understand how they rose to become a leader in the desktop 3D printing field in a short period of time. The three can form an army, do not forget their original intentions, and are loyal to their mission. Ultimaker was founded by the three founders of Martijn Elserman, Erik de Bruijn and Siert Wijnia, and originated from ProtoSpace Utrecht.

One of the founders, Siert Wijnia, wanted to build a RepRap Darwin 3D printer, but encountered various obstacles in the process. Subsequently, the other two founders joined the research project, and the three gradually formed their own design inspiration, hoping to print the parts they need, no longer limited to the RepRap Darwin 3D printer.

The first prototype “Ultimaker protobox” was born. Then Ultimaker Original was established and released the Do It Yourself kit, hobbyists and technicians can assemble it and use it, and users can also share their experience with the community. After Ultimaker was formally established in 2011, it has gathered a group of talented technical talents. Their mission is to accelerate the world’s transition to local digital manufacturing.

The original intention of their establishment is very simple, that is, to target the desktop 3D printing market. They hope that the desktop 3D printer can become a device that can be seen everywhere, whether it is amateur or professional users, whether in the home or office environment, people can print what they need at any time on demand. Adhering to this initial aspiration and mission, Ultimaker successfully obtained multiple financings from 2016 to 2018, gradually went international, and quickly grew into a new star in the desktop 3D printing field.

Looking at the world, every market is unique. In 2015, Ultimaker officially landed in the North American market, and then their footsteps went to Europe and Asia. Now there are factories in Europe and the United States, and more than 50 distributors worldwide. Talking about the reason for such rapid expansion, Jos Burger said that Ultimaker has been listening to the “voices” from all sides. Before deciding on the next new product, they will fully understand the future trend of the market and the needs of users. Just as before the advent of portable notebooks and smart phones, it is hard to imagine how convenient and fast it is to work and communicate with people today. Before the advent of 3D printing, people have always relied on subtractive manufacturing. The emergence of additive manufacturing has brought more design freedom to the manufacturing industry, and people can use less time and cost to create things that were previously unimaginable. It is this advanced thinking that Ultimaker has launched a variety of desktop 3D printers, materials and software in a short period of time.

Because the needs of users were taken into account during research and development, these products quickly moved to the international market. In the process of continuous advancement, Ultimaker has chosen to set up offices in the United States and Singapore. When talking about why he chose this Southeast Asian country, Jos Burger said that the Southeast Asian market, like China, is a market with unlimited potential. With the transformation and upgrading of China’s manufacturing industry, from labor-intensive to technology-intensive, many large manufacturing companies have moved their factories to Southeast Asia where labor is cheaper, which has promoted the prosperity of Southeast Asia’s manufacturing industry. The Chinese market and the Southeast Asian market have their own characteristics. Ultimaker will encounter different opportunities and difficulties when developing in different markets, but they have never stopped moving forward in the global territory. Each market is unique to them, and the opportunities hidden in them are precious. Promoting the industry to enter the application field, companies are duty-bound. In 2018, 3D printing application cases have emerged one after another, and the number has doubled from the previous year. In order to further promote 3D printing into the application field, Ultimaker launched the “Ultimaker Materials Alliance Program” (Materials Alliance Program). Now more than 60 companies have joined the alliance, including global chemical giants such as BASF and DuPont. Ultimaker is even more practical in this matter. Its 3D printers, materials and software are used by famous companies in all walks of life, including Volkswagen, Ford, Bosch, Airbus and L’Oréal. Ultimaker believes that these application cases are the strongest evidence to prove the value of 3D printing in traditional manufacturing. And corporate decision makers are also gradually changing their thinking. They find that 3D printing technology can bring more flexibility to production processes and products, and efficiency has also improved. Therefore, they increasingly hope that 3D printing can help them accelerate digitalization. Transformation. Different from the initial development of 3D printing technology, people are now more familiar with this technology and easier to accept the changes brought about by this technology. But Ultimaker has never dared to take it lightly in the education market. They always believe that as an important part of this industry, the role played by enterprises is also indispensable.

Although this technology has transitioned from knowledge popularization to application, their official website still provides users with the most basic industry knowledge and case sharing, and users can also share and exchange experiences in the community. For leading 3D printing companies like Ultimaker, 2019 will be a crucial year. As a major player in the field of desktop 3D printing solutions, Ultimaker is paying more and more attention to ISO standards, quality assurance, material certification, workflow integration and IT security. This factor is not only the key to advancing the development of the entire 3D printing industry, but more importantly, to eliminate the ultimate obstacle to the widespread application of 3D printing. In the new year, they will focus on achieving this goal, which is critical to their journey to accelerate the world’s transition to local digital manufacturing. About Jos BurgerJos Burger is currently the CEO of Ultimaker. In more than 20 years of professional career, he has accumulated rich experience in building software and telecommunications companies and their European branches. He has helped Ultimaker become a leader in the desktop 3D printing market with his wealth of knowledge, contacts and experience. His firm belief in FFF 3D printing technology drives him to continuously push Ultimaker into new markets.

About Ultimaker Ultimaker was founded in 2011 and has been committed to creating open and easy-to-use solutions for 3D printers, software and materials, and providing support for the daily innovation activities of professional designers and engineers. Today, Ultimaker has grown into a leader in desktop 3D printing, with offices in the Netherlands, New York, Boston and Singapore, and factories in Europe and the United States. The global team has more than 400 employees and is committed to working together to accelerate the world’s transformation to local digital manufacturing.

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Plastic drawer mould supplier

For the plastic drawer Consists of three parts container cap and stents.The three parts should be fitting very well otherwise will be easy stuck.

On the bottom of the drawer there has two parts design as limit position avoid the drawing drop outer.

Drawer will be easy deformation if the injection parameter is not adjusted well or the cooling condition is not good.We must find some method to avoid this deformation.

The plastic melting and shrinkage are also very important for plastic drawer mould.

If you’re interested in this mould pls kindly contact with us.

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