2.8 The electrical connection is to connect two pieces of metal together by heating the metal melted. Caught one piece Or by adding a wire to solder. The process is used for the material. Most metals and plastics To gather together. Normally used to make parts melting and increasing the pool of molten metal declined. Melting of the molten material When cooled, the joint will be strong. Sometimes the pressure with heat. Or alone To weld As opposed to soft soldering and brazing, which has no melting of the work piece with multiple power sources for use in welding, as the heat from a gas flame. The arc power laser beam using a small stump Ron friction using sound waves, the industry has been used in different environments. In such an open space Confined Space Water under the bridge Welding is a dangerous place easily. We should be careful to avoid such dangers caused by electricity, heat sparks welding fumes, gas, radiation arc pieces of hot dust in the beginning to the 19th century with the specific use welding rods (forge. welding) in order to connect the metal. Like the sword in ancient times. This method has high strength welds. Structure and texture of the weld quality is satisfactory. However, there are delays in implementation in the industry. After it has developed into arc welding. And connecting the flame of oxygen. After a Resistance welding by
welding technology has developed rapidly in the 20th century, during World War 1 and the two new welding technology. It is devoted to accelerating the development of the fighting in that time. To replace the traditional metal. As the use of rivets, which is delayed significantly. Movement connect with wire wrapped Flush box (SMAW) is a movement that developed in that period and even today. Is still the most common method used in the United States and developing countries with 2.9 paint
1. Use sandpaper polished piece of work. Spray Primer The foundation would be divided into 1.1 for white primer paint a pretty bright. Such as paint colors are Or that the colors are soft. The white to help draw a more beautiful
1.2 can be used with a primer gray color is dark at all. The color scale represents the scene before painting should be cleaned with dishwashing liquid and then wipe dry. The cleanup will reduce the surface tension of water. Moreover, the paint has a strong adhesion with the pieces. Plastic spray primer that is recommended in the vapor onto the workpiece. Do not spray straight into the action could be a problem. The greasy surface of the workpiece. The old paint is washable. Do not use liquid paint upholds me. It is available 17
oil brake only waited about 15 minutes, I started to see results. (No need to go to that person or accelerated) 2. If it is professional then it can use this advantage is not, which reduced the thickness of the meat. Resolution of the pieces that make it up. Start by using a liquid paint. Now you have to choose from several brands. depending on preference Use a little caution. Since it is very dangerous Ban on skin or eyes After running out Clean with detergent or dishwasher comprising the same. Wipe it dry and leave it that when I blow dry heat. Everything was neat to spray primer. Asked why spray In addition to adhesion, and another was to determine the remaining tracks to be able to store a greater resolution. (But for the paint to be sprayed with primer for steel before. Otherwise sheet disintegration in the course), sprayed primer finish. Some are used to heat a wizard. The hot winds blowing over the area where the spray primer, then spray paint to color the truth, if I had a beautiful (if the color or colors of light) should be painted white with one round to go. Then again, the actual paint spray paint spray away from the real work is about one foot "color theory greasy", which is very risky. But that was smooth called. Do not spray it around Press the spray head and press them too. Never press release ... Press release ... to make the pigment on a surface by spraying it took me gently by my class. Until it is equal
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