How to maintain office furniture office chair?

How to maintain the office chair?

First of all, when carrying the office chair on weekdays, you should lift it gently, and pay special attention to avoid collision. After sitting for a long time in the chair, when you get up, first tap the sedentary part and the edge area of the seat to restore the original condition as soon as possible, and reduce some depressions caused by the sitting power set.

When placing the Ergonomic Boardroom Office Visitor Chair, be careful to keep away from the heat sink and avoid direct sunlight. Do not expose it to strong light. The sun will damage the leather material. Do not rub vigorously when cleaning the office chair, so as not to damage the skin.

For the inadvertently soiled and contaminated Luxury Reinforcing Fabric Industrial Bar Chair, the appropriate concentration of soapy water or washing powder can be used as appropriate, and the water content is generally 40% to 50%. Wipe with water after wiping, and finally wipe it with a clean rag.

The office chair is usually mailed when sitting. When using it, try to make the center of gravity in the middle of the air pressure bar. This not only ensures uniform force, but also ensures that the air pressure lever is light and flexible. In addition to the above, the office chair of the office chair should be used to check whether the screws on the chair are loose. If it is loose, it should be tightened in time. Also check whether the spring and the knob are loose. The spring needs to be based on the user's own weight. To adjust the elasticity.

Pay attention to the following points when cleaning. First of all, you must first understand the material of the office chair. Generally, the office chair legs are mainly made of solid wood and wrought iron. The stool surface is made of leather art or fabric. It is necessary to clearly understand the different materials. When the chair is being cleaned, the cleaning method is also different.
Leather office chair, when using detergent, it is best to try to clean the following in an inconspicuous position to see if there is fading. If there is fading, the concentration of detergent is too high. At this time, it needs to be diluted with water. So as not to damage the cortex.
For solid wood office chair feet, you can use a dry cloth to wipe directly. After wiping with a cloth with some detergent, put it in a dry place to dry. As for the fabric stool, the best cleaning method is to spray the cleaner, just wipe it gently. If it is particularly dirty, use warm water combined with detergent to make it clear. Remember to not rub it with a brush, or the fabric will easily become old.

The artistic beauty of the showcase

Beauty is a permanent search for everyone. For the showcase, the elements of beauty can make its progress into a work of art. In the planning of modern showcases, planners added visual signs to traditional planning methods, focusing on metaphors of shape and shape, which also led to a story behind each showcase. The use of light, the planning of shadows, breaks through the monotony of traditional showcases and makes them more commercially valuable. Participate in the symbolic elements in the exterior planning, using new materials and new structural methods to write new planning concepts for the showcase. The planning approach pays more attention to the performance of metaphors that breaks through the radical demands of traditional showcases on planning and appearance. This new generation of aesthetic features is nothing more than a focus on the appearance of the characteristics and space of the connection, the modern showcase, display frame respect and post-modern aesthetic features, let the showcase abandon the original rigid and stale planning, without changing the original Under the premise of the effect, plus the elements of post-modern aesthetics, the showcase also has some artistic atmosphere, and the products in the showcase undoubtedly add their own commercial value.

At present, in the mall, a variety of showcases and display racks have a variety of personality, which can be seen, and these hidden secrets are the external manifestation of the showcase personality and appearance structure. Everyone has gradually pursued a single business feature of the showcase and display rack, not only having commercial value, but also having a beautiful appearance plan. Everyone's beautiful thoughts lead to a portal with different personalities, and these planners in various categories also have subtle influences. Therefore, in the modern showcase and exhibition frame planning, you can also find the shadow of these individual portals. The world's full-fledged commercial showcases are focused on refinement and usefulness. There are not many prevailing elements in structural planning, but the usefulness is the biggest advantage. Rarely, these portals use black and white and gray colors in the color scheme of the showcase, deliberately seeking the smoothness of the commercial display cabinet. The post-modernist portal discussed above about the artistic appeal of the showcase is greater than the commercial pleading, which allows the planners of the showcase to seek a natural and natural truth. We all know that in the jewelry showcase, the four elements that best express their value are the type, art, material and rhyme. Judging from the four major points of view, the raw materials ranked third, as if it were not so important. So, let's first analyze what the other three elements represent?

1.Shen Yun The rhyme mentioned here refers to the cultural charm of the mahogany antique jewelry showcase and the classical jewelry showcase. This is a kind of soft value. Only those who know the classical jewelry showcase culture can see the value of its culture. For those who don’t understand, the value of this cultural charm will be greatly reduced. The value of rhyme is very unstable.

2. Skills It means technology. Whether it is the classical jewellery showcase or the usual antique jewellery showcase, the proportion of technology in the minds of buyers and collectors is quite large, and good technology can double the value of jewellery showcases. But this is only for the expert. Under normal conditions, it only needs to be a squat structure. It is not easy for ordinary people to see the unevenness of their technical level. Therefore, the quotation of jewelry showcase is difficult to determine by technology.

3. Appearance It is the shape and shape of the jewelry showcase. Different jewellery showcases have different shapes. That is to say, the shape and shape of the jewelry showcase are determined by the name of the jewelry showcase, for example, the circle chair and the canopy bed, they all have their own shapes. If the raw materials are the same, they are in the same mall, and their offer is not the same. This is the value of the name.

 

How to use the upper arm digital electronic blood pressure monitor?

The electronic blood pressure monitor is a medical device that uses modern electronic technology and indirect measurement of blood pressure to measure blood pressure. It has arm and wrist, and is the main tool for self-testing blood pressure in the home. Among them, the wrist blood pressure monitor is not suitable for the elderly. Because the blood pressure of the elderly is already high and the blood pressure is high, the results measured with such a blood pressure monitor have been reduced much compared with the blood pressure pumped by the heart itself. This measurement has no reference value. So the following mainly describes how to use the arm sphygmomanometer to measure blood pressure correctly.

1. Unfold the arm band of the upper arm electronic blood pressure monitor to prevent the arm band from falling off the metal collar.

2. When measuring, if the weather is not cold, barely expose the arm. If you wear more clothes, do not roll up the cuffs while measuring, but take off the clothes.

3. Put the armband of the blood pressure monitor on the left arm. The bottom of the armband needs to be 2~3 cm higher than the elbow. The green mark should be on the inner side of the arm of Egypt. The air tube must be in the extension line of the middle finger.

4. Hold the end of the arm of the blood pressure monitor and pull it while wrapping the arm band tightly around the arm.

 

5, the upper arm blood pressure monitor can also be measured on the right arm, according to the above steps, you can accurately measure the blood pressure value.

The advantages and disadvantages of requesting a rapid prototyping service in SLS

A rapid prototyping service is a mixture of procedures that together achieve the manufacture of certain parts that for machines and traditional manufacturing methods becomes quite complicated until it becomes even impossible for them.

FIRST PART understands the need to evolve and manages to translate this into innovative products.

Previously many companies limited themselves in the evolution of their products since there were no manufacturers that could make their more advanced designs come true, however they did not have to wait long for someone who could help them is this inconvenience, since in many companies the implementation began of the rapid prototyping service, who revolutionized the industries thanks to the diverse procedures that he is able to adapt to achieve the manufacture of specific products.

How is the SLS related to the manufacture of products today?

The selective laser sintering in a procedure used in rapid prototyping to achieve the addition of layers to finally form a single piece that will serve the purpose of satisfying the indications of the applicant and will serve as a prototype for certain elements that in the future plan to be launched on the market.

Prototypes are a fundamental part for the creation of multiple products, since most manufacturers need to test the functionality and durability of these before shipping them to the merchants, thus ensuring they deliver the best quality; In this sense, the SLS manages to create them in the most resistant, fast and durable way, for this reason it is considered one of the best processes in its range.

Taking the SLS as the main option for the creation of your prototypes is undoubtedly a very intelligent decision, since you should not face typical production problems as this leaves very little margin for error, and is quite accurate.

The benefits that this technique has over others are quite remarkable.

In the first place, the SLS manages to create complex pieces that need great detail, leaving very little space for them to be damaged, and if this should happen, the machine would fix it immediately.

Speed is another of the advantageous aspects that exist with respect to the technique, we already know how it works, it is placed layer by layer, and as they are placed, they dry immediately, so there is no that wait a certain time to consider the piece as finished, but that it will be available immediately.

This technique completely ensures that all parts are of high strength and precision, and as a result will always be fully functional, and in conclusion, manufacturers can provide their customers with the assurance that each piece they receive will be of high quality, and they will have a long lifespan, very few techniques can ensure this. 

The New Age of Rapid Prototyping

Prototyping: With the use of CAD and massive amounts of digital simulation software available, it can often seem superfluous to make early appearance models, or even undertake early testing of new designs. But prototyping remains a key factor in product design and development, and additive manufacturing continues to deliver even more agile, faster, concurrent engineering results that are needed in today’s design and engineering world.

Rapid prototyping with additive manufacturing has come a long way since the invention of Stereolithography (SLA) in the mid-1980s by 3D Systems’ founder and CTO, Chuck Hull (ultimately my boss). As a key part of the product design and development process, prototypes for fit, form, and function created as early as possible in the design process continue to shorten design times, deliver better products, and reduce product time-to-market.

While additive manufacturing (AM) is turning the corner to full production that can provide end-to-end solutions, prototyping is far from obsolete. In many ways, it is now far more crucial and advantageous to produce early prototypes to take advantage of both additive and traditional manufacturing practices.

Rapid Prototyping Today Meets Greater Demands

Product lifetimes are decreasing. We expect a new iPhone every year. Updates to vehicles are down from 10 years to two years. In the aircraft industry, engine qualification timelines have been shortened from over 10 years to under five, while major airliners and airframers are now expected to refresh internal cabin feel every few years as opposed to just maintaining traditional interiors.

Product innovation and customer expectations are feeding off each other at ever-increasing speed. The result is greater demand for variety, high expectations for customization, and near-constant innovation. That kind of velocity and limited edition parts are able to be delivered through additive manufacturing producing rapid prototypes without the time and costs required for tooling.

SLA was the first and is still one of the main processes in rapid prototyping. New innovations in Contactless Digital Light Processing (CDLP) are delivering even faster response for prototypes. What used to take weeks in the 1990s using traditional modeling methods was superseded by SLA prototyping, which can produce 12 to 15 prototypes in the same time. Today, these numbers are being supplanted by high-frequency concept model production using CDLP. This enables very rapid production of prototypes but also measurably reduces the product development timeline.

Frequency response of production of prototypes using traditional methods, then SLA, and now DLP.

Aerospace Design and Industrialization teams rely heavily on prototyping to create new AM methodologies for the industry. With recent innovations in heat exchangers using Powder Bed Fusion technology (PBF), technologies like SLA with clear resin are a part of the design and iteration workflow.  This allows them to build multiple iterations in less than a week and dynamically test out internal fluid flow. While traditional design techniques would rely on simulated data, the complex geometry now possible with AM in metals make it so that each simulation will now take weeks instead of days. Instead of waiting, you can live-test products for visual fluid flow and make adjustments daily to ensure that the intended fluid flow and pressure drops are in line with expectations. For complex projects, this can enable you to iterate over a dozen prototypes in a matter of weeks, delivering the final test metal parts several months ahead of any schedule that didn’t include prototyping.

 

Rapid prototypes of a new heat exchanger design allowed rapid testing of the fluid and heat flow prior to the production of the final part.

Clear SLA materials for these applications are critical to providing good information in the prototyping phase. One company who benefitted from this is TecNiq, a developer of lighting solutions for watercraft. For TecNiq, it’s critical to choose a resin system that can provide truly clear lighting covers: Any opacity or color augmentation would result in a useless prototype for the final design.

TecNiq has saved time and labor costs prototyping production-quality lenses that demonstrate product performance before tooling the parts.

But it doesn’t just stop at SLA 3D printing.

Selective Laser Sintering (SLS) that uses nylon can make high quality functional prototypes that can include living hinges, bendable parts, and monolithic parts developed from an assembly. In addition, without the need for tooling and rivaling injection molding quality, nylon, and other materials with heat and chemical resistance let designers make parts for on-engine and on-rig testing and verification quickly and inexpensively.

Idaho Steel, a machine tool maker for food processing production lines, uses SLS 3D printing for both functional testing as well as production of end-use parts installed directly onto its machines. Since each production line includes customization, SLS provides Idaho Steel with the immediacy of tool-free production, plus robust parts, required to turn orders around quickly. Idaho Steel cited a reduction in time from 250 hours down to 90 hours, a two-third’s reduction for part production.

Using SLS 3D printing technology and thermoplastics such as 3D Systems’ DuraForm EX Black delivers parts which have the toughness of injection molded ABS and polypropylene, resulting in functional prototypes that can be tested in “real-world” environments.

 

SLS additive technology is also crucial to the success of interior cabin manufacturing companies. Our group has worked with four such companies recently to lay out fully-functional prototypes. In a recent project with a Tier 1 seating company, additive manufacturing using SLS and SLA technology enabled them to iterate and provide several versions of fully functional Super Luxury seating prototypes. The use of AM technologies like these has helped the company advance its product cycle by months in a highly competitive market, one which they hope to grow from single to double digit market share. By using AM, they avoided the high lead times in fabrication by both creating directly printed prototypes, and for larger parts, creating AM molds for casting urethane. In an environment that has only a few strong players and a high demand for refreshing luxury cabin seating, only AM provides the tools necessary for companies to aggressively improve market share, even when the final product will be manufactured traditionally.

Modular conveyor manufacture, Span Tech, uses the MultiJet Printing (MJP) platform by to prototype and test conveyor parts prior to ordering injection mold tooling. A broad range of materials are available on these types of platforms, and the materials are robust enough for snap-fit testing, sliding parts, and parts with metal bearings inserted.

Span Tech uses two different VisiJet materials to achieve optimal part properties for prototyping and testing machine parts prior to ordering injection mold tooling.

While the range of prototypes that can be made using additive manufacturing is almost endless, it’s important to note that design limitations do exist. SLA requires support structures to be pulled either down into the vat or off the print platform, which means that designers need to take into account support removal and scarring on down facing surfaces. SLS and MJP provide a support free platform, but has less accuracy than other resin-based systems If these design rules can be kept in mind, the extent of additive materials available mean you can quickly produce almost any kind of part, including rubber-like and overmolding, high strength, Ccear, or in full-color to represent the appearance of the design.

CJP has revolutionized the design process for consumer goods—such as for this bike seat prototype—as it can render a physical part possessing the color and look of a final part for testing.

Color Jet Printing (CJP) is another powerful tool in the world of prototyping. The obvious use case for CJP is to simulate full-color goods such as apparel and housing. Since its invention, CJP has revolutionized design for both architecture and consumer goods; it also has some very practical applications in engineering design. With the ability to render a 6 million color gradient (delivering the full color spectrum of a 2D printer in all three dimensions!), CJP has been instrumental in the use of topology optimization. Being able to produce full-size prototypes with different cases of stress concentration has become a staple in the design and industrialization process that aerospace groups can use to design and market new additive design strategies to conservative or skeptical companies. Having the physical part with calculated stress concentrations, in bright color, is becoming a vital part of the internal validation and sales process.

3D printing technologies can be combined with traditional manufacturing to render realistic, trustworthy prototypes that are used by production and maintenance engineers to validate the design and manufacturing process prior to investing in production tooling.

In addition, additive is also used by some on-demand services to deliver a rapid prototype of full-scale car models for hands-on functional testing and design verification. This vehicle was created using a combination of SLA and SLS 3D printing, as well as some sheet metal and machined parts, in eight weeks from receiving the CAD data. Once complete the automotive company’s design, production, and maintenance engineering teams were able to carry out comprehensive testing for appearance, production methods, and clearance and accessibility checking for maintenance.

It is also crucial to note that prototyping with additive doesn’t always mean directly producing the final part—it often means the use of tooling to enable design and testing. Eggshell molding provides the ability to design and test dynamic seal shapes using the exact seal material needed for final injection molded design. Done either on SLA or CDLP, this process uses sometimes as little as a teaspoon of resin to produce the outer mold of a seal, and after injecting the silicon/rubber material and curing, can simply be peeled off and functionally tested before investing in a complex final mold. This shaves months off the manufacturing and design cycles typically used.

This double O-ring was produced using 3D printing to deliver egg shell molds, which provides the ability to design and test dynamic seal shapes using the exact seal material needed for final injection molded design—reducing the manufacturing and design cycles by months.

Rapid prototyping also has game-changing effects on the casting industry. Using either SLA or materials jetting technology, it is now possible to print casting patterns directly with no tooling. For material jetting, wax patterns produced work with traditional foundry workflow and can be used for everything from prototyping to full production. Even simple geometries can take 8-12 weeks to manufacture before initial patterns can be injected, and for more complex geometries can cost in the hundreds of thousands and take more than six months before it can be tested. Material jetting technology can provide dozens of ready-to-cast patterns in weeks or less, saving months to years on complex castings. It also enables the use of reverse draft angles which are unheard of in traditional molding design, but very beneficial for turbine impeller and other technologies.

For larger castings, SLA can be used to produce large, complex patterns. Using a unique build style that allows for a very low-resin, light-weight pattern that, with slight modifications to autoclave burnout cycles, can be used in any casting house. Both of these options are available through machine ownership or through our on-demand services, and have been instrumental in the prototyping of castings globally.

Rapid prototyping through additive is becoming ever more rapid, accurate, affordable, and functional in a world that demands faster design response. Whether you are using prototyping to functionally design a product, produce appearance models for external or internal use, or even for design validation—regardless of the manufacturing method of your final product—additive manufacturing has a crucial role to play in product development across every manufacturing industry in the world.