Briefly explain how heat is related to the activities on the right.
1.Metal working (making jewelry)
Explanation:
2.Pottery (hardening of clayware)
Explanation:
3.Vulcunization(the process of hardening rubbers)
Explanation:
Answers
Answer:
1.
Explanation:
Metalworking is the process of working with metals to create individual parts, assemblies, or large-scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts and delicate jewelry. It therefore includes a correspondingly wide range of skills, processes, and tools.
Contents
Slapper.
Spoons.
Dollies.
Forming bags.
Mallets.
Hammers.
Files and rasps.
Snips and shears.
.
2..The two main categories of ceramics are traditional and advanced. Traditional ceramics include objects made of clay and cements that have been hardened by heating at high temperatures. ... In addition, most ceramics are opaque to visible light, and glasses tend to be translucent.
Answer:
Metal working - The metallurgical structure and properties of metal are altered whenever heat is applied to it, and both welding and cutting are examples of common processes that generate heat. In contrast, heat treatment can also be used to return metals to their original state.
The process of heating metal without allowing it to reach its molten, or melting, state and then cooling it in a controlled manner to select the desired mechanical properties is known as heat treatment. Metal can be made stronger, more malleable, more abrasion-resistant, or more ductile through heat treatment.
Pottery - At temperatures around 1,000 degrees Fahrenheit (540 degrees Celsius), clay transforms into pottery. Tribal earthenware is typically fired to about 1,400 degrees Fahrenheit (760 degrees Celsius).The clay's molecular water is removed by heat. Clay molecules are transformed by the heat into water-insoluble ones. Pottery and brick in modern societies are fired in kilns to temperatures between 1,800 and 2,400 degrees Fahrenheit. Most common clays, like the one on the left, begin to deform and melt at temperatures higher than about 1,900 degrees Fahrenheit. Clay used in modern toilets contains fewer contaminants. It is extremely strong and impervious when fired between 2,300 and 2,400 degrees Fahrenheit.
Vulcanization - Sulfur, an accelerator, and an activator are heated to 140–160°C during vulcanization, a chemical process. In order to achieve improved elasticity, resilience, tensile strength, viscosity, hardness, and weather resistance, the procedure involves the formation of cross-links between long rubber molecules.
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