Are tungsten carbide prices going up?

1 Answer

Answer :

I use tungsten carbide burrs on my rotary grinder and they have not changed in price in the last couple of years. I didn’t know they made jewelry out of tc, is it pretty?

Related questions

Description : What is a the differance between a purity ring and a promise ring?

Last Answer : Why not ask him instead of us.

Description : How To Make Lacy Napkin Rings

Last Answer : These are fast, fun, inexpensive and charming. Use them with cloth or paper napkins to dress up your everyday table, to celebrate special occasions or to make seasonal decorations. Materials 1/2 yd 1/2″ lace ... hot glue the seam. Hot glue lace or ribbon on edges and flowers and/or jewels on top.

Description : How to Clean Bathtub Rings

Last Answer : How to Clean Bathtub Rings Bathtub rings are a particular kind of dirt in your bathtub that can really make it look nasty. A bathtub ring is a ring of scum and dirt that forms around the edges of ... , switch to a non-soap wash. Baby wash and shower gel are two great alternatives to soap bars.

Description : How to Blow Smoke Rings ?

Last Answer : How to Blow Smoke Rings Most regular smokers just puff out smoke in a non-impressive way, but if you're a show off, one trick you can do is make smoke rings. It's cool and attention-grabbing, so if you're ... you blow. Soon, they be ohh-ing and ahh-ing, and will beg you to show them how to do it!

Description : State the function of following parts in Induction motor. (i) Stator (ii) Slip rings

Last Answer : Name of part Function Stator 1) Stator frame supports the core, terminal box and protects the inner parts. 2) Stator core houses stator winding. 3) Stator winding ... ) Provides facility to connect external resistance to rotor circuit through brushes for starting and control.

Last Answer : Equilizer rings are required in case armature is lap wound.

Description : Which of the following has the highest modulus of elasticity (about 7 × 106 kg/cm2)? (A) High speed steel (B) Stainless steel (C) Tungsten carbide (D) Superalloys

Last Answer : (C) Tungsten carbide

Description : _________ is the hardest material out of the following. (A) Boron carbide (B) Tungsten carbide (C) Hardened steel (D) Silicon carbide

Last Answer : (A) Boron carbide

Description : Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition of (A) 90% tungsten carbide and 10% cobalt (B) 70% aluminium oxide & 30% silica (C) 30% nickel, 15% chromium & 55% tungsten (D) 65% tungsten & 35% zirconium

Last Answer : Option A

Description : Which of the following is the most wear resistant grade of carbide used for the cutting tools? (A) Aluminium carbide (B) Tungsten carbide (C) Nickel carbide (D) Iron carbid

Last Answer : Option B

Description : Which of the following is the most wear resistant grade of carbide used for the cutting tools? (A) Aluminium carbide (B) Tungsten carbide (C) Nickel carbide (D) Iron carbide

Last Answer : Option B

Description : Powder metallurgy technique is used in the production of __________ tools. (A) Tungsten carbide (B) High carbon steel (C) High speed steel (D) Drilling

Last Answer : Option A

Description : Drills are usually made of (A) Cermets (B) High speed steel (C) Alloy steel (D) Tungsten carbide

Last Answer : Option B

Description : Broaching tools are usually made of (A) Cermets (B) High speed steel (C) Tungsten carbide (D) Stellite

Last Answer : Option B

Description : Pick up the correct statement from the following: (A) Melamine is obtained from calcium carbide (B) Formaldehyde is prepared synthetically from methane (C) The melamine when reacted with formaldehyde forms the melamine-formaldehyde resin (D) All the above

Last Answer : Answer: Option D

Description : When water vapours are passed over aluminium carbide, what do we get? -Do You Know?

Last Answer : answer:

Description : Which was the gas which had leaked out of Union Carbide factory in Bhopal? -Do You Know?

Last Answer : answer:

Description : A specialized type of carbide bur is a/an blank bur?

Last Answer : Oral & Maxillofacial pathology

Description : What is carbide ?

Last Answer : Carbide is CaC2, which is used to ripen fruits.

Description : What is the name of the gas that burns in a carbide gas lamp ?

Last Answer : The gas that burns in a carbide gas lamp is called acetylene ( C2H2) .

Description : `underset("Calcium carbide")(CaC_(2))overset(H_(2)O)(to)(A)overset("Red hot Cu tube")(to)(B)`, Product (B) of the reaction is:

Last Answer : `underset("Calcium carbide")(CaC_(2))overset(H_(2)O)(to)(A)overset("Red hot Cu tube")(to)(B)`, Product (B) of the reaction is: A. B. C. D.

Description : What could be done to change this carbide ion to a neutral carbon atom?

Last Answer : I cannot answer this question.

Description : Which chemical is used to ripen mangoes artificially? (1) Sulphur Dioxide (2) Nitrous Oxide (3) Calcium Carbide (4) Phosphorous

Last Answer : (3) Calcium Carbide Explanation: The chemical widely used for artificially ripening fruits is calcium carbide (CaC2). It is used to ripen about 80 per cent of mangoes in India.

Description : Carborundum is another name of – (1) Silicon carbide (2) Silicon oxide (3) Calcium carbide (4) Calcium oxide

Last Answer : (1) Silicon carbide Explanation: Silicon carbide, also known as carborundum, is a compound of silicon and carbon with chemical formula SiC. It occurs in nature as the extremely rare mineral moissanite. Silicon carbide powder has been massproduced since 1893 for use as an abrasive.

Description : The chemical that is used to ripen mangoes is - (1) Calcium sulphide (2) Calcium carbide (3) Calcium carbonate (4) Calcium chloride

Last Answer : (2) Calcium carbide Explanation: Calcium carbide is used for artificially ripening fruit. When calcium carbide comes in contact with moisture, it produces acetylene gas, which is quite ... the natural ripening agent ethylene. Acetylene acts like ethylene and accelerates the ripening process.

Description : Calcium salts used as fertilizer is – (1) Calcium Carbide (2) Calcium Carbonate (3) Calcium Cyanide (4) Calcium Sulphate

Last Answer : (4) Calcium Sulphate Explanation: Sulphur (as sulphate) is a major plant nutrient, and is essential for crop growth. Calcium Sulphate (gypsum) is used to improve soil quality. Calcium sulphate ... It is mainly used for the reclamation of sodic soils through ion exchange (calcium replacing sodium).

Description : What do you understand by critical points in iron, iron-carbide diagram ?

Last Answer : The temperatures at which the phase changes occur are called critical points (or tem¬peratures).

Description : When water vapours are passed over aluminium carbide, what do we get?

Last Answer : Methane

Description : Which of the following theories of origin of petroleum does not explain the presence of nitrogen & sulphur compounds in crude oil? (A) Modern theory (B) Carbide theory (C) Engler theory (D) All (A), (B) and (C

Last Answer : (B) Carbide theory

Description : In the gaseous diffusion process of uranium enrichment, the natural uranium is converted into gaseous (A) Uranium oxide (B) Uranium hexafluoride (C) Uranium carbide (D) Uranium sulphate

Last Answer : (B) Uranium hexafluoride

Description : Final product of uranium extraction plant at Jadugoda (Bihar) is (A) Uranium (B) Uranium oxide (C) Uranium carbide (D) Magnesium diuranate

Last Answer : (D) Magnesium diuranate

Description : With increase in carbide/graphite ratio in cast iron, its (A) Hardness & brittleness increases (B) Ductility decreases (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) and (B)

Description : Ceramic recuperators are generally made of (A) Silicon carbide (B) Calcium carbide (C) Fireclay bricks (D) High alumina bricks

Last Answer : (A) Silicon carbide

Description : Carbon supply in pack carburising process is in the form of (A) Charcoal (B) Calcium carbide (C) Hydrocarbon oil (D) Graphite

Last Answer : (A) Charcoal

Description : Carbon is present in the combined form (carbide) in case of (A) Pig iron (B) Steel (C) Ferroalloys (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : The main constituent of carborundum is __________ carbide. (A) Calcium (B) Silicon (C) Boron (D) Aluminium

Last Answer : (B) Silicon

Description : Which of the following has a very high carbide forming tendency in steels? (A) Silicon (B) Chromium (C) Nickel (D) Vanadium

Last Answer : (D) Vanadium

Description : Which of the following has no effect on the carbide forming tendency insteels? (A) Molybdenum (B) Phosphorus (C) Chromium (D) Vanadium

Last Answer : (B) Phosphorus

Description : Beehive coke ovens are made of __________ bricks. (A) Silica (B) Fireclay (C) Silicon carbide (D) Corundum

Last Answer : (A) Silica

Description : Why are Calcium Carbide (CaC 2 ), Carbon monoxide (CO), Carbon dioxide (CO 2 ), Hydrogen cyanide (HCN) and calcium carbonate (CaCO 3 ) classified as inorganic compounds through they contain carbon?

Last Answer : These compounds contain only one or two carbon atoms per formula unit and contain no carbon-carbon (C-C) bonds or carbon-hydrogen bonds. Hence they are classified as inorganic compounds.

Description : How is silicon carbide formed? OR What happens when silicon and coke are heated?

Last Answer : When a mixture of silicon and coke is heated in an electric furnace, silicon carbide is formed. It is an endothermic reaction. Si + C SiC

Description : Fuel used in a Fast Breeder Reactor is -------? A. Uranium Oxide B. Uranium Plutonium carbide C. Uranium Plutonium Oxide (Answer) D. Uranium thorium Oxide E. None of these

Last Answer : C. Uranium Plutonium Oxide (Answer)

Description : Decarburisation of steel (A) Is the removal of carbon from iron carbide (Fe3C) (B) Affects its crystalline structure (C) Is favoured by CO2 (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Which gas is produced after the application of Calcium Carbide to the fruits, for rapid ripening? a. Methane b. Carbon-di-oxide c. Acetylene d. Ethylene

Last Answer : c. Acetylene

Description : Which gas is produced after the application of Calcium Carbide to the fruits, for rapid ripening? a. Methane b. Carbon-di-oxide c. Acetylene d. Ethylene

Last Answer : c. Acetylene

Description : Silicon carbide is a/an (A) Adhesive (B) Abrasive (C) Type of glass (D) Brittle material

Last Answer : (B) Abrasive

Description : In primitive days, __________ was being manufactured by Leblanc Process. (A) Alum (B) Washing soda (C) Soda ash (D) Calcium carbide

Last Answer : (C) Soda ash

Description : The temperature in the calcium carbide furnace is __________ °C. (A) 200-300 (B) 700-850 (C) 2000-2200 (D) 4000-4500

Last Answer : (C) 2000-2200

Description : Coke used for the production of calcium carbide should have (A) Low ash content (B) Low ignition temperature (C) High electrical resistivity (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Commercial production of calcium carbide requires limestone and __________ as raw materials. (A) Coke (B) Sand (C) Soda ash (D) Fuel oil

Last Answer : (B) Sand