This lab is all about analyzing substances in terms of their physical and chemical changes. The physical properties of a substance can be observed and measured without changing the composition of the substance. It can be used to identify and describe substances. Physical properties of matter include odor, color, density, solubility, boiling point and melting point, and its physical state at room temperature. A colorless, odorless liquid that freezes at 0°C and boils at 100°C is probably water, for
History of Oxy-fuel welding and cutting Oxy- fuel welding is usually called in workplace/trades terms oxy acetylene welding, gas welding and oxy fuel cutting which are all use fuel and oxygen to cut and weld metals together. It all started with the famous chemist Edmund Davy, who is suppose to be considered as the first man to make acetylene. By accident in 1836 Edmund while trying to make potassium created a black compound which was mixed with water create a gas that burned greatly. Edmund
career, you can go to a welding school and learn how to weld, or you can try to be a welders helper and just learn the trade. Welding can be a tough job if you don’t know what you are doing or you do not enjoy doing it. Welding is a fabrication or sculptural process that joins materials together (Modern Welding). This is the process that uses fuel gases and oxygen to make a molten pool of metal to fuse together two pieces of metal, called puddeling (oxy-fuel welding and cutting. Wikipedia). If you decide
The arc from a welding machine can be brighter than a solar eclipse. Because of welding benefits, qualifications, and job opportunities, it is a great career choice. NASCAR — Long before the rubber hits the road, roughly 950 man-hours are spent on welding and fabrication for each race car. Hundreds of parts are hand-cut, welded and machined, from the chassis and suspension to the drivetrain. (“careersinwelding”). Welding is a great career choice because, of the wonderful benefits the job has to
Underwater Welding The job I plan to have when I leave Hiram is to me, one of the best jobs ever. The job I will like to have is underwater welding. Underwater welding is the process of welding at elevated pressures, normally underwater. It is also called Hyperbaric welding. It can either take place wet in the water itself or dry inside a specially constructed positive pressure enclosure and hence a dry environment. A welder fuses materials, such as steel and aluminum, together to create mechanisms
Plasma Cutting Plasma cutting is a method of cutting through metals by means of an accelerated jet of hot plasma, using a plasma torch. It is a process that is extremely essential for the shaping of metals through cutting away unwanted parts. How Does Plasma Cutting Work? Plasma can be defined as a substance similar to a gas with almost zero electric charge. When a gas is heated to
Welding is a construction else sculptural process that seams materials, usually metals or thermoplastics, by creating combination. This is in different with fusing and brazing (which involves melting a lower-melting-point material between the work pieces to form a bond between them) it works without melting the work pieces. This is often done by melting the work pieces and adding a stuffing material to form a pond of molten material (known as the weld pool) that cools to become a strong joint and
Oxygen Oxygen Atomic number8Atomic weight15.9994Melting point-218.4oC (-361.1oF) Boiling point-183.0oC (-297.4oF) Density (1 atom, 0oC) 1.429 g/lValence2electronic config.2-6 or 1s22s22p4.Oxygen is one of the must important factors that made it possible for life to exist in this planet. Oxygen is also one of the elements must found in earth. Oxygen can be found in in metals, water, and even the one thin that protects us from the powerful sunrays. Oxygen is a very unstable element, which makes it