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In the field of building material, rebar and steel wire are mostly used items.
Today, let us take a look at the process how to get the rebar or steel wire to the
expected wire and length according to our special requirements.

To begin with, we will need to purchase Rebar or steel wire rod from the iron steel plant. Pls make sure that the quality is good to be processed at the following stages. Then we can start the project.

1- For rebar, we will need to use Rebar Cold Drawing Machine to get the rebar
to the expected diameter.

2- For steel wire, we will need to use two kinds of machines to get to the
expected diameter and length.
1) Wire Drawing Machine. Normally, we choose simple ways to draw the wire
rod. So we recommend the Horizontal type wire drawing machine to get the expected diameter of the steel wire.
2) Wire straightening and cutting machine. With this one, we can straighten the wire and cut to expected length.

Above all is How to get the Rebar or Steel wire to the expected diameter and
length. For more information, pls visit our website: http://www.wzxjjx.com

Best regards

Terry Lin

Sales Director

Skype: terry0501258

Web: http://www.wzxjjx.com

Email: terrylin@wzxjjx.com

Wenzhou Quxi New Street Machinery Factory

Have you ever thought of manufacturing bolts, nuts & screws by yourselves? In

Almost every industry, we use nuts & screws. It is equal the meaning of water to

humans as standard components to Industries.

Today, let us take a look at the process how these nuts, screws, standard

components are made.

1- Firstly, We will need to purchase steel wire rod from the iron steel plant.

Pls make sure that the quality is good to be processed at the following stages.

2- Secondly, we will need use Wire Descaling Machine to clean the surface of the wire if it is oxidized. Traditionally, people take the method of acid pickling to clean the wire, which does harm to the environment and the worker’s health. So we recommend the acid pickling- free type, which is equipped with the vacuum machine and is totally environmentally friendly.

3- Thirdly, we will need to use the Wire Drawing Machine to get the wire to the

expected diameter, according to different requirement for the nuts, screws we

want to produce. Normally, we choose simple ways to draw the wire rod. So we

recommend the Horizontal type wire drawing machine & Vertical type wire

drawing machine. The horizontal type is only for drawing wire, while the vertical

type can do wire drawing and wire coiling at the same time.

4- Fourthly, We will need to use Cold Heading Machine to cut and form the

shape. There are several models to choose from according to our requirements.

5- Fifthly, We will need to use Thread Rolling Machine to get the thread on the

Components. Again, there are several models to choose from according to our

requirements.

Above all is How to manufacture screws like standard components. For more

Information, pls visit our website: www.wzxjjx.com

Best regards

Terry Lin

Sales Director

Skype: terry0501258

Web: http://www.wzxjjx.com

Email: terrylin@wzxjjx.com

Wenzhou Quxi New Street Machinery Factory

Welding galvanized steel is common in the metal fabricating industry. Most welders will at some point in their career perform a weld on galvanized steel and encounter galvanize poisoning or "metal fume fever." Galvanize poisoning is a short-term reaction to overexposure of zinc oxide. Zinc oxide is produced when the steel's galvanized coating is heated and evaporates.

1. What is Galvanized Steel

   • Galvanized steel is iron that is coated with zinc. When hot-dipped, the zinc chemically reacts with the base metal to form a corrosion resistant coating. The outer layer of the coating is pure zinc and subsequent layers gradually change in composition until they reach the iron base metal.

     Between the zinc outer layer and iron base metal, zinc oxide is present in varying percentages of zinc to iron. The zinc oxide has the same chemical make-up as the white powder used by lifeguards to protect their noses against sunburn.

   Signs of Galvanizing During Welding

   • Proper prep work to remove galvanizing from the weld area will reduce your exposure to zinc oxide fumes, but some galvanize will remain in the weld area. Yellowish-green smoke, white powdery particles floating in the air and white residue around the weld are sure signs that zinc oxide is present while welding.

     Exposure to large amounts of the yellowish-green zinc oxide fumes will result in galvanize poisoning, commonly referred to as metal fume fever. The amount of exposure will have a direct effect on the severity of your symptoms.

   Symptoms of Galvanize Poisoning (Metal Fume Fever)

   • Signs of galvanize poisoning are similar to flu symptoms. The onset of metal fume fever begins shortly after the body is exposed to zinc oxide and the symptoms include a slight headache and nausea. With increased exposure, flulike symptoms begin to set in.

     Moderate zinc oxide exposure results in chills, shaking, slight fever, vomiting, and cold sweats. When the listed symptoms begin, it is time to stop welding and get fresh air. The symptoms can quickly become debilitating and you may need to go home and let the symptoms subside.

     Fatalities have been associated with extreme cases of galvanize poisoning. Therefore when metal fume fever symptoms begin, you should immediately avoid further exposure.

   How Long "Metal Fume Fever" Lasts

   • Metal fume fever is short-lived and the symptoms begin to fade within four hours of exposure and generally completely fade within 24 hours. Extreme cases of overexposure may see metal fume fever symptoms last for as long as 48 hours.

     Drinking milk can quicken the recovery process as calcium helps remove the zinc build-up from your body.

     There have been studies performed by the Centers for Disease Control (CDC) and the Occupational Safety and Health Administration (OSHA) on the long-term effects of welding galvanized steel. No studies have shown long-term health problems due to continued exposure to zinc oxide fumes or repeated cases of metal fume fever.

   Avoiding Overexposure to Galvanize Fumes

   • Proper ventilation, avoiding direct contact with zinc oxide smoke, and proper pre-welding prep work will reduce the chances of your getting metal fume fever. Experienced welders that have had metal fume fever will tell you that drinking milk before, during and after welding galvanized steel will help eliminate the galvanize poisoning.

     There are specialized fresh air welding hoods available for welders who frequently weld galvanized steel.

      

     Article extracted from: 

For vitamin/mineral/herbal supplements that are beneficial  detoxifying the system  and preventing metal poisoning in welders, I highly recommend Swissgarde South Africa's NAFDAC approved Aloepower and Omega plus.

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