Wednesday, December 7, 2011

Solar flares "sandblasting" the Moon

Solar storms remove a surprisingly large amount of material from the lunar surface, computer simulations have revealed, leading NASA scientists to speculate that solar storms may also be a major factor in atmospheric loss on Mars and other planets. This is the first time researchers have attempted to predict the effects of sun activity on the Moon. Details of the simulations appear in the Journal of Geophysical Research Planets.

According to Rosemary Killen, from NASA's Goddard Space Flight Center, coronal mass ejections (CMEs) from the Sun impact the lunar surface and atoms are ejected in a process called "sputtering." CMEs - a more intense version of the normal solar wind - are effectively a diffuse stream of plasma that's blown outward from the surface of the Sun. A strong CME may contain around a billion tons of plasma moving at up to a million miles per hour.

"The Moon has just the barest wisp of an atmosphere, technically called an exosphere because it is so tenuous, which leaves it vulnerable to CME effects. We found that when this massive cloud of plasma strikes the Moon, it acts like a sandblaster and easily removes volatile material from the surface," explained NASA co-researcher William Farrell. "The model predicts 100 to 200 tons of lunar material could be stripped off the lunar surface during the typical 2-day passage of a CME."


with thanks : link being uploaded below for viewing the complete report : http://www.scienceagogo.com/news/20111106225715data_trunc_sys.shtml


www.finishingmachines.com


Thursday, November 3, 2011

sand blasting nozzles

Vohras International offers Sand blasting nozzles in TC as well BC. These nozzles are Aluminium / MS jacketed. The bore dia of these nozzles can be offered in 6mm , 8mm, 10mm. The nozzles available are in Ventury type as well in straight bore type.Some of the pics are as below :


sand blasting nozzles - ventury

Sand blasting nozzles in Ventury type in TC as well BC in various sizes are available with us. Plz mail your drawing for a quote or ask us for our standard & routine sizes of nozzles.


sand blasting nozzles - straight bore

Straight bore nozzle with TC liner with Bore Dia of 6mm - 8mm


sand blasting nozzles - boron carbide

Standard size of Boron carbide nozzles are available


sand blasting nozzles - angular cut

Standard size of Boron carbide nozzles are available


Plz contact :

VOHRAS

INTERNATIONAL

F-19/10, Krishan Nagar, Delhi - 110051 (India)

Mobile : 0091 - 9212004471 Telefax : 0091-11-22090242

metalfinishing@yahoo.co.in

www.finishingmachines.com


Tuesday, September 27, 2011

Buy / Sell Used Finishing machines

BUY / SELL

Plz feel free to mail us details, pics, vids of your used Finishing Machines such as : shot blasting, Sand blasting, Vibratory finishing, Centrifugal finishing, honing, polishing, deburring for uploading on this blog so that buyers can contact you.

The details may also be uploaded on our website for a wider coverage : www.finishingmachines.com/used%20machines.htm

Saturday, September 24, 2011

Shot Blasting Machines : Ezine Articles









In Tumblast, a conveyor belt rotates inwards, inside the chamber of the shot blasting machine & the components are loaded on it as per the size & capacity of the machine. The door is than closed. Rotor is switched on for throwing Shots or Grits on the components. By this process, the loaded components get a universal finish. Abrasive medias such as Shots or Grits are continuously fed by the elevator of abrasive media. All the dust extracted in the process goes to the attached dust collector. On completion of desired time period, the door is opened & than the conveyor belt is driven outwards. As a result the components can be removed from the chamber. An automatic loading system can also be attached to the shot / grit blasting machine.

The Tumblast shot / grit blasting machines are available in many sizes, right from a 2 cu ft capacity machine to a 15 & 20 cu ft capacity machines. Some of the sizes are: 20" x 27", 20" x 42", 27" x 36", 30" x 43", 36" x 42", 42" x 42" as well 48" x 48".

Similarly, Hanger model Shot blasting machines are available in Single / Double door type, Centralised hanger type as well a monorail type. In this model, the components are hanged instead of loading on the conveyor belt. Rest of the process is same. The hanger rotates for a universal finish using multiple rotors depending upon requirement. The benefit is that the components do not touch each other in the process of finishing and hence are scratch free.

Swing table model shot blasting machines are suitable for bigger or heavier components or if the smaller parts are to be shot blasted only one side. Many sizes are available from a minimum 36" of table to 120" of table in sngle as well double doors.

Continuous conveyor model shot blasting machines are suitable for smaller components which are to be shot blasted only one side with a single rotor. Multiple sides can be finished by using multiple rotors. Components are fed from one side & removed from the other side duly finished.

The spare parts mostly wearable are made from ni hard or alloy steel to get the maximum life.The main spare parts include the Rotor, Blades, Spring locks, Cage & Impeller, Cage adapter, centre plate, Top segment, Side liners, Round plates as well the conveyor belt. Few precautions are necessary while running the machine.

The Tumblast model of Shot blasting machine if to be used for finishing of smaller components is best suitable and very cost effective. we can be contacted with details of your components for a suitable size & model of shot blasting machine.

More details can be viewed on http://www.finishingmachines.com

The author is engaged in the sale of Shot blasting machines for the last over 20 years. You can visit him on http://www.finishingmachines.com for more details.

Thursday, September 8, 2011

Shot Blasting Machines


Tumblast shot blasting machines are the best suitable for cleaning & finishing of small to medium size of Castings, Forgings, Aluminium die castings, Brass & gun metal parts, Sheet metal as well hardened components. Options of using a Hanger type machine, a monorail, a table model or a continuous conveyor model shot blasting machines are also available depending upon suitability.More details can be viewed on www.finishingmachines.com

In Tumblast, a conveyor belt rotates inwards, inside the chamber of the shot blasting machine & the components are loaded on it as per the size & capacity of the machine. The door is than closed. Rotor is switched on for throwing Shots or Grits on the components. By this process, the loaded components get a universal finish. Abrasive medias such as Shots or Grits are continuously fed by the elevator of abrasive media. All the dust extracted in the process goes to the attached dust collector. On completion of desired time period, the door is opened & than the conveyor belt is driven outwards. As a result the components can be removed from the chamber. An automatic loading system can also be attached to the shot / grit blasting machine.More details can be viewed on www.finishingmachines.com

The Tumblast shot / grit blasting machines are available in many sizes, right from a 2 cu ft capacity machine to a 15 & 20 cu ft capacity machines. Some of the sizes are : 20" x 27" , 20" x 42" , 27" x 36" , 30" x 43" , 36" x 42" , 42" x 42" as well 48" x 48".More details can be viewed on www.finishingmachines.com

Similarly, Hanger model Shot blasting machines are available in Single / Double door type, Centralised hanger type as well a monorail type. In this model, the components are hanged instead of loading on the conveyor belt. Rest of the process is same. The hanger rotates for a universal finish using multiple rotors depending upon requirement. The benefit is that the components do not touch each other in the process of finishing and hence are scratch free.More details can be viewed on www.finishingmachines.com

Swing table model shot blasting machines are suitable for bigger or heavier components or if the smaller parts are to be shot blasted only one side. Many sizes are available from a minimum 36" of table to 120" of table in sngle as well double doors.More details can be viewed on www.finishingmachines.com

Continuous conveyor model shot blasting machines are suitable for smaller components which are to be shot blasted only one side with a single rotor. Multiple sides can be finished by using multiple rotors. Components are fed from one side & removed from the other side duly finished.More details can be viewed on www.finishingmachines.com

The spare parts mostly wearable are made from ni hard or alloy steel to get the maximum life.The main spare parts include the Rotor, Blades, Spring locks, Cage & Impeller, Cage adapter, centre plate, Top segment, Side liners, Round plates as well the conveyor belt. Few precautions are necessary while running the machine.
The Tumblast model of Shot blasting machine if to be usedsmaller components are best suitable and very cost effective. we can be contacted with details of your components for a suitable size & model of shot blasting machine.More details can be viewed on www.finishingmachines.com

Training on decoration of glass, ceramic wares


Micro, Small and Medium Enterprises (MSME) - Development Institute will be organising a skill development training programme for educated unemployed youth.

 The training programme will be conducted on decoration of glass and ceramic wares for a month from September 12 to October 11, at the MSME Development Institute, Rajajinagar, Bangalore - 560 010.

The course will cover ceramic tile decoration, crockery decoration by transfer and screen printing method, glass aquarium, glass gift items, screen printing, printing on papers, plastics and leather articles, glass etching, sand blasting on glass, glass colour transfer decoration, stained glass, etc.

The candidates should be in the age group of 18 to 35 years. Interested candidates may send in their bio-data including their name, date of birth, father/husband’s name, marital status, address, phone number, e-mail address, educational qualification to the director, MSME-DI, Government of India, Rajajinagar, Bangalore.

with thanks :
http://www.deccanherald.com/content/186601/training-decoration-glass-ceramic-wares.html

www.finishingmachines.com
www.finishingmachines.blogspot.com

Are Your Designer Jeans Making Factory Workers Sick?



There are few things that compare to the comfort and look of a worn-in pair of blue jeans. In fact, the allure of your “favorite pair of jeans” is so enticing that designers have been looking for ways to artificially duplicate it for years.
Even though sandblasting was outlawed in Europe in 1966 many top designers still use it in their foreign factories to give denim a worn, faded look. According to Mother Jones, inhaling silica from the sand used during this treatment process puts factory workers in developing countries at increased risk for a disabling lung disease called silicosis.
Sandblasting is “often performed in small workshops in the informal sector in jeans-producing countries like Bangladesh, Egypt, China, Turkey, Brazil and Mexico, reports the Clean Clothes Campaign. “Almost all of the jeans sold in Europe are produced in these countries. In Turkey alone, 46 documented cases of sandblasters contracting silicosis and dying have been registered. This is likely to be only the tip of the iceberg.”
A few months ago, the Clean Clothes Campaign started a public action concerning the sandblasting of denim. The CCC urged many of the top fashion designers in the world to ban sandblasting in their supply chains, and some, like Levi’s, H&M and C&A got on board immediately. Others, like Dolce & Gabbana and Roberto Cavalli, have ignored requests to protect worker health.

Read more: http://www.care2.com/causes/are-your-designer-jeans-making-factory-workers-sick.html#ixzz1XLnyCV4u


www.finishingmachines.com
www.finishingmachines.blogspot.com

Oxfam blasts jeans sellers




OXFAM Australia is threatening to take The Just Group to the Australian Competition and Consumer Commission unless it stops promoting ''sandblasted'' jeans.

The practice of blasting denim to speed up the faded look is banned in several countries, including Australia, as it causes lung diseases such as silicosis. But it is still widely used in clothing factories in China, Pakistan, Bangladesh and other manufacturing hubs. Several denim brands, including Levi's, Esprit and Gucci, have banned sandblasting.

Last month, Just Jeans insisted that sandblasting was not a practice it used, but online catalogues for Jay Jays and Just Jeans continue to promote sandblasted jeans and shorts


Read more: http://www.theage.com.au/lifestyle/fashion/oxfam-blasts-jeans-sellers-20110907-1jxs7.html#ixzz1XLleNW7c



with thanks :


www.finishingmachines.com
www.finishingmachines.blogspot.com

Worker deaths linked to sandblasted jeans


BRENDAN TREMBATH: They're popular in a lot of places: sandblasted jeans.
But the aid organisation Oxfam says the manufacturing process can be deadly.
Sandblasting has apparently killed dozens of workers overseas and made many more seriously ill.
Liz Hobday prepared this report.
VOX POP 1: We love fashion.
VOX POP 2: Look at the fashion and see the runway.
VOX POP 3: Pretty excited, you know, Melbourne has such a great fashion culture.
LIZ HOBDAY: Among the high end labels delighting crowds on the runway this week are the well-known brands Just Jeans and Dotti, owned by The Just Group.
Oxfam claims these and other labels owned by the company use sandblasting to fade the jeans they sell.
The executive director of Oxfam Australia, Andrew Hewett.
ANDREW HEWETT: Sandblasting is known to cause silicosis. It's been known to cause deaths.
The company says on one hand that they no longer use sandblasting but at the same time their website is promoting products which have been sandblasted.
LIZ HOBDAY: Michele O'Neil from the Textile Clothing and Footwear Union of Australia is among those who've been campaigning against the practice.
MICHELE O'NEIL: Pretty much the process is what it sounds like. It's workers involved in spraying high pressured sand onto denim.
What happens through that is that they suffer silicosis as a result of ingesting the sand and that is deadly.
LIZ HOBDAY: She says the pulmonary condition has killed dozens of workers overseas.
MICHELE O'NEIL: So recent studies that have been done in Europe, in particular in Turkey, have shown over a period of about five years in Turkey that in fact 50 workers' deaths were attributed to sandblasting.
LIZ HOBDAY: The Just Group says it won't work with manufacturers that use manual sandblasting guns on jeans but because its suppliers are overseas it can't rule out their use.
with thanks :
http://www.abc.net.au/news/2011-09-08/worker-deaths-linked-to-sandblasted-jeans/2877068?section=entertainment

www.finishingmachines.com
www.finishingmachines.blogspot.com

Tuesday, March 22, 2011

Top chains are urged to ban sandblasted jeans

Asda, Diesel, Matalan and Primark are among a group of companies being criticised for selling jeans made using sandblasting, which can cause illness or even death.

 

The pressure group, Labour Behind the Label, said these companies continue to use sandblasting to give denim a "worn" look, despite the danger that silica dust from the sand can get into workers' lungs. British companies including New Look and Marks & Spencer also say they have banned the process. Levi's and H&M stopped all use in December
"Dead workers aren't fashionable," said Sam Maher, co-author of Labour Behind the Label's Killer Jeans report, which will be published on Monday.

with thanks : telegraph.co.uk : Read the detailed news from the link as below :
http://www.telegraph.co.uk/finance/newsbysector/retailandconsumer/8392757/Top-chains-are-urged-to-ban-sandblasted-jeans.html

 

 

Friday, March 11, 2011

FOR SALE : MECHANICAL RECOVERY BLAST ROOM SYSTEM


















IT IS MECHANICAL RECOVERY BLAST ROOM SYSTEM. 
COMPRISING OF :
 
1-PORTABLE ABBRASIVE BLASTER MODEL P7-501R
2-SINGLE HOOPER WITH SUPPORT AND GRATING- 1 NO.
3-BUCKET ELEVATOR AND MEDIA SEPARATION UNIT 01 NO.
4-FABRICK BAG DUST COLLECTOR
5-DOOR WITH RUBBER LINING
6-RUBBER LINING 2.5 MX 1.5 M OF 3 MM THICKNESS
 
TOTAL RUNNING TIME-  140 HOURS.
PURCHASED IN 2005
 
Please contact for more details : 
metalfinishing@yahoo.co.in

Friday, March 4, 2011

Sand Blasting Nozzles in Boron Carbide & Tungston Carbide























We offer the Sand Blasting Nozzles in Boron Carbide & Tungston Carbide.
Please feel free to contact us for any more details :

Vohras International
www.finishingmachines.com