Thorium Welding Rods

Thoriated Tungsten Electrodes - American Welding Society
International Institute of Welding (IIW). Statement from Commission VIII, Health and Safety 2000. Welding with Non-Consumable Thoriated Tungsten Electrodes. Document IIW-VIII-1901-00. np: np. Jankovic, J. T., W. S. Underwood, and G. M. Goodwin. 1999. Exposures from Thorium Contained in Thoriated Tungsten Electrodes. American Industrial Hygiene ... Document Retrieval

Welding Health And Safety Respiratory Protection
Welding fumes are . particles. generated by the vaporization of metal near the arc Sources include welding rods (primary), base metal and coatings Metal vapors quickly condense, oxidize and form feathery aggregate particles (not a gas or vapor!) NIOSH approved respirators with particle filters can efficiently filter these welding fume particles. ... Retrieve Content

EPA Facts About Thorium
Thorium is used to make ceramics, lantern mantles, welding rods, camera and telescope lenses, and metals used in the aerospace industry. How does thorium change in the environment? Thorium-232 is not a stable isotope. As thorium-232 decays, it releases radiation and forms decay products that include radium-228 and thorium-228. ... Read Full Source

Tungsten Electrodes - CK Worldwide
Tungsten Electrodes EWP, EWTh-2, EWLa-1.5, EWLa-2, EWCe-2, EWZr-8, EWG For welding consumables and related products. 1.2.2 Uses advised: Reference the [ 7. Handling and storage] Tungsten-Thorium Oxide alloys are generally safe to handle during use under all normal conditions and ... Get Content Here

Thoriated Tungsten Welding Electrodes - Intranet Home
Article is to alert persons involved in TIG welding of a potential hazard. The hazard arises from the storage and use of thoriated tungsten electrodes. Thorium is incorporated into some tungsten welding rods to improve their working properties. Thorium is used in a wide range of industrial processes. It is ... Fetch This Document

SAFETY DATA SHEET (SDS) - Mscdirect.com
SAFETY DATA SHEET (SDS) Tungsten Electrodes WELDING MATERIAL SALES, INC. Thorium dioxide is subject to the reporting requirements of Section 313 of Title III Welding fumes and gases cannot be classified simply. The composition and ... Return Doc

Www.airgas.com
Thorium dioxide is subject to the reporting requirements of Section 313 of Title III of the Superfund Amendments and 10.6 Welding fumes and gases can create complex interactions. When an electrode is consumed, the fume and gas generated can be volatile and toxic. ... Return Document

Thoriated Tungsten Electrodes - American Welding Society
Thorium, a radioactive material that can pose health and environmental risks at elevated exposure levels. The use of these handling, and welding with thoriated tungsten electrodes is negligible where simple precautions are taken. Special care ... Visit Document

Cloud Chamber With Thoriated (thorium) Welding Rods, Peltier ...
A short video of a quick and dirty cloud chamber that lets you 'see' radiation emitted from a few thoriated welding rods with 2% thorium content. A sponge soaked in isopropanol (~100%) is ... View Video

Of Airborne Thorium Liberated During Welding Operations
Neutron Activation Analysis of Airborne Thorium Liberated During Welding Operations D. C. Glasgow, L. Robinson, J. T. Jarikovic (OWL) INTRODUCTION Typically, reactive metals such as aluminum are welded using a thoriated tungsten welding electrode which is attached to a source of argon gas such that the local atmosphere around the weld is inert. ... Fetch Content

Thorium Containing Welding Rod (1990s) - Andrew Karam
The estimated effective dose equivalent to an individual carrying three thoriated welding rods (0.9 g thorium) in a shirt pocket for 2000 hours (40 hrs/week x 50 weeks/year) was 8 mrem.. Pertinent Regulations ... Read Content

Also, small tungsten rods are available at welding supply stores. They are sold as TIG electrodes, and they commonly come in 1/16, 3/32, and 1/8" diameters. Request pure tungsten, as they also come alloyed with 2% Thorium , Lanthanum and other elements. ... Read Article

How To Process thorium - YouTube
The radioactive element is safer, more abundant, and cheaper to extract and handle than Welding Rods or Electrodes containing Thorium rods containing thorium. Background The process in which an ... View Video

Thorium Rods - YouTube
These rods contain 2% thorium. Here the beta & gamma radiation level is measured with a Vernier Student Radiation Monitor. It measures approximately seven times my background level. ... View Video

THORIUM DIOXIDE HAZARD SUMMARY Thorium Dioxide
* After exposure, some Thorium Dioxide is retained in the bones and other body organs for many years. IDENTIFICATION Thorium Dioxide is a heavy, white, crystalline (sand-like) powder. It is used in ceramics, in nuclear fuels, as a catalyst, and in electrodes for arc welding. REASON FOR CITATION * Thorium Dioxide is on the Hazardous Substance List ... Fetch Full Source

Radiation In The Environment - Health Physics Society
Radiation in the Environment Author: Health Physics Society Cat Litter Penetrators THORIUM A Naturally Occurring Radioactive Element in the Earth’s Crust “Spot Plate” Thorium Lantern Mantles Welding Rods Camera Lenses Other Uses of Thorium OTHER RADIONUCLIDES Revigator Smoke Detectors ... View Doc

Leaflet 29 Items And Components Containing Thorium
C Thoriated welding electrodes – hazard and risk information Scope 1 Thorium is a naturally occurring radioactive material and is widely used within MOD in magnesium alloy aircraft components, optical lenses and some laboratory compounds. Less widely used but still in service are thoriated welding rods. Obsolete thoriated items include gas ... Get Doc

Welding Rods Or Electrodes Containing Thorium
Welding rods is negligible. Required protection, if needed, would vary with time of exposure, distance from source, and shielding used. Shielding for storage of a one-day supply requires no special precautions. A metal box or cabinet would be appropriate storage for a few hundred thorium welding rods. For depot-level storage ... Retrieve Full Source

IN THE UNITED STATES COURT OF APPEALS FOR THE FIFTH CIRCUIT ...
The thorium in the welding rods used by Burleson is present in the form of thorium dioxide. Thorium dioxide is a naturally occurring radioactive compound that is distributed in the air during the welding and grinding processes. The U.S. Department of Health and Human Services has determined that thorium dioxide is a carcinogen. ... Content Retrieval

Guidance Notes For Welding Companies Using Thoriated Tungsten ...
Thoriated tungsten electrodes (TTEs) are used in the welding industry. Thorium, in the form of thorium oxide, is added to tungsten welding electrodes which are used in Tungsten Inert Gas (TIG) arc welding. The addition of thorium improves arc starting and stability, reduces weld contamination and gives longer electrode life. However, thorium is ... Retrieve Here

Use Of Tungsten Welding Rods Containing Thorium
Tungsten welding rods, typically containing one or two percent by weight of naturally radioactive thorium oxide (hereafter referred to as thoriated tungsten welding rods), are widely used in industry. ... View Full Source