Drawbar force gauge

How drawbar force gauges work

Modern drawbar force gauges typically are based on a force sensor that uses bonded strain gauges and electronics to convert the resulting output into a digital display for the user to view. Earlier versions of these gauges sometimes also used a sealed hydraulic cavity with a pressure gauge to measure and display force. These hydraulic gauges are generally considered less accurate because of the physical limitations of the indicator.

Why drawbar force is measured antique kitchen faucet

Drawbar force gauges allow early detection of problems with the spindle's Belleville spring stack, verification of performance of the clamping system as a whole, help prevent damage to spindle taper and other machine features critical to machining accuracy, and ultimately help to keep the machine operator safe. waterfall tub faucet

Drawbar force measurement has been made much more important in recent years with the introduction of radically higher RPM machines. These machines are necessary to work the modern materials required in a multitude of applicationsew types of composite wood material, carbon fiber, and high strength materials such as titanium. High speed machining of these materials is considered to begin at 10,000 rpm and may reach as high as 50,000 rpm. The need for regular verification of the spindle clamping system becomes obvious.

As the required machining speeds become higher, the need for machines to be built with smaller diameter spindle components increases. When the spring pack, bearings, and hydraulic units become smaller, the stresses placed upon them become greater. As a result, the clamping system will remain in good shape for fewer and fewer "cycles", or "clamp/unclamp" procedures. Again, this requires gauges and routine procedures to monitor this process. Many operators do not realize that this is something that has changed over time.

Any metal or wood working machine that takes advantage of the HSK taper system should be routinely checked. The slightest stroke mis-adjustment, dirt, or slight wear of the drawbar system can result in significantly reduced holding force. A preventative maintenance schedule, with a strict timetable for testing is a necessity when operating any type of high speed machine utilizing the HSK system.

Drawbar force gauges are able to detect broken or weakening components of the drawbar clamping system, can give indications that the unit needs lubrication, detect gripper mis-adjustment, or demonstrate that the incorrect retention knob is being used for the machine. With a highly accurate electronic gauge, all of these deficiencies can be noted and corrected. Many hours of expensive machine operating time can be put to use while avoiding fretting, chatter, "stuck" tool holders in a spindle, etc., by employing proper preventative maintenance techniques using an accurate electronic gauge and other spindle health management tools.

Drawbar force gauges in tool holder standards

The following tool holder standards specifically address tool retention force as measured by a drawbar force gauge:

HSK standard ISO 12164-1: Holow taper interface with flange contact surfaceart 1: Shanksimensions

Steep Taper standard ASME B5.50: 7/24 Taper Tool to Spindle Connection for Automatic Tool Change

Capto Taper standard ISO 26623-1: Polygonal taper interface with flange contact surfaceart 1: Dimensions and designation of shanks

Related articles

Don Forget The Drawbar, Modern Machine Shop magazine, March 2006, By Peter Zelinski

Draw Bar Force Testing Equipment, MachineToolHelp.com

Spin Doctors, Cutting Tool Engineering magazine, August 2009, By George Weimer

Suzhou, China U.S. people Group buy on April 30 set off the whole city - Suzhou, China U.S., Gome - HC network appliance industry-hc360

China Suppliers


Home Network News

HC

:
ladies ski jackets

The evening of April 30, Gome Home Appliances joint Suzhou Evening News launched "people Group buy will be" detonated in Sioux City, Grand bargain-hunting none other 6 hours, consumers will witness the entire Group buy cheap miracle brought about. According to the U.S. State responsible person, currently stored deposit activities are conducted in hot, pre-existing deposit of the public will be able to participate in the evening of April 30 "first discount, and then arrived now, but also win
ladies waterproof jackets

Car
wool trench coat

"Crazy promotions.



Mingzhemingkou, first discount is then arrived



Reporter recently found an interview in Gome, the country every day many people came to the United States to participate in pre-existing deposit activities. According to the relevant person in charge of the country the United States, April 30, people will be the night Group buy, Gome will launch "Mingzhemingkou, before discount, and then arrived at is" the promotion, which purchased the first best-selling home appliances discount, also with early in the States United States stored in 50 chronological deposit cards will arrive is 200-4500 yuan, the lowest intensity would be quite amazing discount.



States official said the United States related to: Mingzhemingkou unprecedented intensity of activities, participate in many brands, but also very low threshold of prepaid deposits, prepaid customers as long as 29, 50 deposit, per share over 1000-2999 is can justifiably arrived is 200 yuan per can justifiably arrived over 3000-7999 is 500, can be justifiably arrived in full 8000-15999 yuan is 1,000 yuan, over 16000-29999 element can justifiably arrived at is 2,000 yuan, 3,000 yuan or more over can justifiably arrived is 4,500 yuan.



Not shopping, to the country to win the U.S. automobile



4 evening on 30, even if consumers are not shopping the country deserves to see the United States, might have a chance to get an M2 vehicle. According to reports, from April 23 -5 23, Gome introduced "to the country the United States, won the right to use Hover M2 car" activities during the event, any one consumer to Gome stores, no shopping, just to

Service

Taiwan to receive a raffle ticket, a chance to win the right to use Harvard M2 cars a year.



Learned, "to the country the United States, winning car" event is the country the United States in calendar year launched a major holidays a highlight, whether it is pumping Dongfeng Citroen, was taken BYD, or to the current HARP M2 vehicles, each times have attracted a lot of consumer participation. Since its launch, the campaign has received more than 3,000 effective Lotteries Zhang, consumers might want to collect awards in the Group buy Gome night to try his luck, May 23, Gome will live in the Stone Road flagship store lottery!



4.30 buy, set off kitchen and consumer market



Benefit from the spring

Decoration

And 51 small holiday coming, the consumer demand for kitchen and bath products. To do this, 4.30 million Group buy period, Gome will start May 1 in advance sales promotion activities, the Expo to market a large number of kitchen products, kitchen products will be welcome

Sell

Peak.



Learned that, as consumers pursue high quality of life, environmental protection, energy saving, beautiful, personalized kitchen appliances has been more consumer attention. To meet this consumer demand, Gome cooperation with well-known kitchen manufacturer, has introduced new products, stores have been covered by the current economy, practicality, luxury kitchen and bathroom products, dramatically to meet the needs of different consumer groups. The promotion States United States for the kitchen and home appliances is introduced the audience five fold, two-piece full capacity Ji Song,

Rice cooker

, Induction cooker, electric pressure cookers and other promotional gifts.



As the Shanghai Expo licensed Product Management Office of the authorized retailers, buy during the event, China will become the exclusive U.S. sales, including Haier, Simons,

Shuaikang

, Ferroli, cherry, Germany and Italy, Smith, party too, can rate, Vantage, boss, MACRO,

Million and

, Ariston, opp, Herbalife, Autran Expo kitchen appliances, etc., involving goods Expo licensed products are posted on the anti-counterfeit labels, with the Expo low power, low-carbon, environmentally friendly standards, but also possess the fashionable, user-friendly features.

Low-carbon economy will soon prevail Enterprise Integration floor

China Suppliers


People more conscious of low-carbon energy enhancement. We are increasingly aware of the agricultural civilization of human society, what needs to be done after the industrial civilization. Global climate warming on human survival and development challenges, as the global population and economic size of the growing, environmental problems caused by energy use growing, smog, photochemical smog and acid rain and other weather phenomena, to make the future of the people economic development model. Low-carbon economy is an inevitable trend of historical development.

Tide in these low-carbon economy, we should be how to develop the wood floor.

First, enterprises must adopt a legally harvested wood flooring certified sources. tapping screw

There is only one earth, solid wood table with parquet board processing of raw materials, are of wood from around the world. In order to protect natural resources and maintaining ecological balance, people's environmental awareness has been enhanced over the world such as USA, Europe States, regions corresponding introduction of forest protection laws, such as the United States on May 1 implementation of the Lacey Act, the wood products into the United States are required to show proof of legal harvesting of timber, or severe penalties will be the economy, domestic policies are brewing, so Enterprise use of raw materials, it must pay attention to the legality of timber and timber species in the development of sustainable nature. deck screws

In China, the forest coverage rate is far lower than developed countries, in 2005 the State Forestry Administration released data that year. China is only 175 million hectares of forest area, forest coverage in China, only 18%. drywall screws

However, many years ago, has been working in China to take various measures to protect the garden.

Seven in the National Ecological Reserve was established, including the Wuyishan nature reserve in Sichuan Wolong natural protection areas. A greater degree of protection of existing forest area. And increased to varying degrees, with a garden. If the edge of the desert area in Inner Mongolia to plant trees to prevent land desertification, increase the green area. In addition to this, other raw materials to the timber industry in the use of the proposed new requirements. State Forestry Administration, State Development and Reform Commission, Ministry of Finance, Ministry of Commerce, State Administration of Taxation, China Banking Regulatory Commission, China Securities Regulatory Commission jointly issued a "forest industry policy points." Lead, regulate and support the development of forestry industry and improve the quality of forestry industry, to expand the scale of forestry industry and other aspects of a series of policy measures, and to encourage tree germplasm resources protection; in the cultivation of tree species on breeding and increase forest seed base.

In this context, wood and wood products, wood flooring Marketing Association Circulation Council years ago, advocated "taking in nature, also in the nature" concept, for seven consecutive years, led the processing of the wood floor public enterprises to participate in afforestation activities, strengthen business focus in the production process to improve product quality while enhancing environmental awareness and enhance the concept of legally harvested timber.

Taking resource conservation, scientific and technological innovation

1, increase the comprehensive utilization of timber.

Wood flooring is a resource-based industries, for companies developing new products, resolutely carry out the large timber Dayong, small timber large timber used to improve utilization. Such as profile control down a small wood saw wood, short bonding material used that method of access and integration. Production of integrated means Jiemu floor. Not only to adapt to market developments, in turn relieves the southern interior dry and wet wood easy to change the size change caused.

2, using technological means to improve the wood floor surface of the floor to extend the service life durability and reduce the waste of resources.

In order to maintain beautiful wood flooring products, surface UV-curable coatings have been decorative or PV paint decoration. But its durability shorter period, and consumers in the Paint Falling off abandoned after the demolition. Enterprises around the board have adopted this technology as a means to improve wear-resistant titanium crystal face paint, new products such as crystal surface paint to improve surface abrasion resistance, cleanliness, service life extension to the floor.

3, waste wood floor repair or recycling.

Wireless electronic devices and health

China Suppliers


Exposure difference to mobile phones

Main article: Mobile phone radiation and health

While users of wireless devices are typically exposed for much longer periods than for mobile phones, the range of wireless devices (and hence their strength) is significantly less. As well, the devices are located significantly farther away from users' heads, resulting in far less exposure overall: The Health Protection Agency claims that if a person spends one year in a Wi-Fi hotspot, they will receive the same dose of radio waves as if they had made a 20-minute call on a mobile phone. garmin streetpilot 7200

Wireless LAN navman icn 510

EMF levels for WiFi devices are much lower than mobile phones, and there is less public concern about any suggested health issues for wireless LAN devices. Most wireless LAN equipment is designed to work within predefined standards. Wireless access points are also often in close proximity to humans, but the drop off in the already low power over distance is fast, following the inverse-square law. WiFi has been anecdotally linked to electromagnetic hypersensitivity, but no studies have researched this association to date. magellan gps navigation system

The HPA's position is that ...radio frequency (RF) exposures from WiFi are likely to be lower than those from mobile phones. It also saw ...no reason why schools and others should not use WiFi equipment.3] In October 2007, the HPA launched a new ystematic study into the effects of WiFi networks on behalf of the UK government, in order to calm fears that had appeared in the media in a recent period up to that time". Dr Michael Clark, of the HPA, says published research on mobile phones and masts does not add up to an indictment of WiFi.

Bluetooth

Bluetooth also uses the microwave frequency spectrum in the range of 2.4 GHz to 2.4835 GHz. The radiated output power of Bluetooth devices varies between 1 and 100 mW, and can operate continuously or sporadically (on demand), so total exposure to EMF radiation is quite variable. Bluetooth devices have not been linked with any health issues.

Other devices

Radio frequency in the microwave and radio spectrum is used in a number of practical devices for professional and home use, such as:

DECT and other cordless phones operating at a wide range of frequencies

Remote control devices for opening gates, etc.

Portable two-way radio communication devices, such as walkie-talkies

Wireless security (alarm) systems

Wireless security video cameras

Radio links between buildings for data communication

Baby monitors

In addition, electrical and electronic devices of all kinds emit EM fields around their working circuits, generated by oscillating currents. Humans are in daily contact with computers, video display monitors, TV screens, microwave ovens, fluorescent lamps, electric motors of several kinds (such as washing machines, kitchen appliances [like electric can openers, blenders, and mixers], water pumps, etc.) and many others. A study of bedroom exposure in 2009 showed the highest ELF-EF from bedside lights and the highest ELF-MF from transformer devices, while the highest RF-ELF came from DECT cordless phones and outside cellphone base stations; all exposures were well below International Commission on Non-Ionizing Radiation Protection (ICNIRP) guideline levels. The highest typical daily exposure, according to a study of 2009, came from cellphone base stations, cellphones and DECT cordless phones, with the highest exposure locations in trains, airports and buses. The typical background power of electromagnetic fields in the home can vary from zero to 5 milliwatts per meter squared.[citation needed] Long-time effects of these electromagnetic fields on human and animal health are still unknown, and most of the studies available have shown no effect. However, the powerful fields produced by radio (and then TV) transmitters have been present for more than 100 years now with no established effects on people's health.

See also

Electromagnetic radiation and health

References

^ "Electromagnetic fields (EMF)". World Health Organization. http://www.who.int/peh-emf/en/. Retrieved 2008-01-22.  lectromagnetic fields of all frequencies represent one of the most common and fastest growing environmental influences, about which anxiety and speculation are spreading. All populations are now exposed to varying degrees of EMF, and the levels will continue to increase as technology advances.

^ Levitt, B. Blake (1995). Electromagnetic Fields : a consumer's guide to the issues and how to protect ourselves. San Diego: Harcourt Brace. pp. 2938. ISBN 9780156281003. OCLC 32199261. 

^ a b "WiFi Summary". Health Protection Agency. http://www.hpa.org.uk/radiation/understand/radiation_topics/emf/wifi.htm. Retrieved 2008-01-22. 

^ "Wi-fi health fears are 'unproven'". BBC News (BBC). 2007-05-21. http://news.bbc.co.uk/1/hi/technology/6676129.stm. Retrieved 2008-01-22. 

^ Foster, Kenneth R (March 2007). "Radiofrequency exposure from wireless LANs utilizing Wi-Fi technology". Health Physics 92 (3): 280289. doi:10.1097/01.HP.0000248117.74843.34. PMID 17293700. 

^ "Health Protection Agency announces further research into use of WiFi". Health Protection Agency. http://www.hpa.org.uk/webw/HPAweb&HPAwebStandard/HPAweb_C/1195733726123?p=1171991026241. Retrieved 2008-08-28. 

^ "Wi-fi: should we be worried?". The Times (London). http://www.timesonline.co.uk/tol/life_and_style/health/features/article665419.ece. Retrieved 2007-09-16. "All the expert reviews done here and abroad indicate that there is unlikely to be a health risk from wireless networks. When we have conducted measurements in schools, typical exposures from WiFi are around 20 millionths of the international guideline levels of exposure to radiation. As a comparison, a child on a mobile phone receives up to 50 per cent of guideline levels. So a year sitting in a classroom near a wireless network is roughly equivalent to 20 minutes on a mobile. If WiFi should be taken out of schools, then the mobile phone network should be shut down, toond FM radio and TV, as the strength of their signals is similar to that from WiFi in classrooms." 

^ Tomitsch, Johannes; Dechant, Engelbert; Frank, Wilhelm (2009-09-24). "Survey of electromagnetic field exposure in bedrooms of residences in lower Austria". Bioelectromagnetics (Epub ahead of print). doi:10.1002/bem.20548. PMID 19780092. 

^ Frei, Patrizia; Mohler, Evelyn; Neubauer, Georg; Theis, Gaston; Brgi, Alfred; Frhlich, Jrg; Braun-Fahrlnder, Charlotte; Bolte, John et al. (August 2009). "Temporal and spatial variability of personal exposure to radio frequency electromagnetic fields". Environmental Research 109 (6): 779785. doi:10.1016/j.envres.2009.04.015. PMID 19476932. 

External links

UK Health Protection Agency Wi-fi Summary

v  d  e

Radiation (Physics & Health)

Main articles

Non-ionizing radiation

Ultraviolet light  Near ultraviolet  Visible light  Infrared light  Microwave  Radio waves  Acoustic Radiation

Ionizing radiation

X-ray  Cosmic radiation  Gamma ray  Background radiation  Nuclear fission  Nuclear fusion  Particle accelerators  Nuclear radiation (nuclear weapons  Nuclear reactors)  Radioactive materials (Radioactive decay)

Thermal radiation  Electromagnetic radiation  Earth's radiation balance

Radiation health effects

Radiation therapy  Radiation poisoning  Skin effect  Radioactivity in biological research  List of civilian radiation accidents

Mobile phone radiation and health  Wireless electronic devices and health  Health physics  Laser safety  Lasers and aviation safety

Related articles

Radiation hardening  Half-life  Radiobiology  Nuclear physics

See also: Category:Radiation effects  Category:Radioactivity  Category:Radiation health effects  Category:Radiobiology

Categories: Bluetooth | Wireless | Environmental health | Ergonomics | Public health | Radiobiology | Mobile telecommunications | Medical physics | Radiation health effectsHidden categories: Articles needing additional references from April 2008 | All articles needing additional references | All articles with unsourced statements | Articles with unsourced statements from April 2008

"Appliances to the countryside" urgent break the bottleneck service - bringing home appliances, service bottlenecks - Network Appliance Industry-hc360 HC

China Suppliers




TCL

TV
stretch film dispenser

Service
plastic crate

Both rural areas and products to rural areas
folding crate



It is understood that the successful companies in various TV, TCL, whether

Sell

Network, service network, or logistics and distribution network, coverage is ahead of peers.



Service support products countryside countryside



TCL Group Senior Vice President, TCL Group "

Bringing home appliances

"The total project leader Wang Kangping introduced, in order to allow rural consumers to enjoy more convenient and rapid service, in addition to agents and building through its own service system approach, TCL set up the most sound and highest level of service service team, the positive cash "appliances to the countryside" pledge.



First purchased by the TCL 200 service vehicles for the national service network, hardware upgrades, including the rural market, a "fixed time touring the countryside

Service

Activities ", for the rural consumer home delivery services, so that TCL in the" home appliances to the countryside "to achieve" products have to go under, the service come. "



As a leader in color television companies, TCL TV products in the rural areas to actively promote the occasion, also perfect with its own service network, service quality is high, open and transparent charges and other advantages, strive to promote quality services to rural areas, as rural consumers with quality products of international energy-saving TVs, it also provides a more intimate and thoughtful services.



Promote local employment service to rural areas



Reporter was informed that the service initiative on rural areas, TCL In addition to investment funds, also after-sales service team aspects of the expansion. It is understood that, in order to better meet the service needs of rural consumers, TCL local recruit a certain skill level of maintenance service personnel training, assessment services by the countryside and directly into the ranks of TCL, TCL service measures to increase the floor and implementation.



TCL responsible person, the reason why some of the local recruiting skilled workers, on the one hand is really a need to increase manpower services to rural areas, enrich staff; the other hand, because skilled workers are local people, who not only Mandarin but also understands dialect, to a good number of rural consumers with local communication, the services are more intimate, real Romans.



Earlier, TCL took the lead in the national call center to provide users with a variety of dialects 4008-123456 answering service, the recruitment of skilled workers to enrich the local service team, is a more practical, more intimate continuity. Kang-Ping Wang Description: "More importantly, can have a certain number of skills of local rural youth the opportunity to solve some local employment, enhancing" home appliances to the countryside "social effectiveness."



TCL ace services more intimate



TCL Multimedia service sector relevant person in charge said, TCL all "appliances to the countryside"

Flat Panel TV

Will enjoy the TCL provides a "machine warranty 1 year, 3 years warranty screen" service, higher than the existing Association standards. Meanwhile, the rural market, both far and near as long as

Warranty

Within the TCL are available free onsite engineer service initiatives.



To ensure rural consumers enjoy the first time, efficient and convenient service TCL, TCL early in the service network, service, service system, and building a lot of money and technology, hardware and software upgrade . It is understood, TCL has 28 branches nationwide service centers, 169 management department, service department, directly under the existing 1083 service engineers, 4350 special service network, 12 492 network service engineers. Among them, the county district TCL after-sales service network coverage reached 100%, maintenance of network coverage of rural areas exceeded 56.7%.