Mainstream wirewound resistors are a common electronic component used in circuits such as limiting current, regulating voltage, and dividing voltage. They are made of metal wire or carbon powder wrapped in insulating materials and have a certain resistance value. The production process of mainstream wirewound resistors is a complex process that requires multiple steps to complete. Let's take a detailed look at the production process of mainstream wirewound resistors.

First of all, the first step in producing mainstream wirewound resistors is to choose the right materials. Usually, the resistor body materials of mainstream wirewound resistors are carbon film, metal film, metal oxide, metal wire, etc. Different materials have different resistance values and power capacities, and manufacturers need to choose the right materials according to customer needs.

The second step is to prepare the resistor body. Depending on the selected material, the method of preparing the resistor body is also different. For carbon film resistors, the carbon powder needs to be evenly coated on the insulating substrate first, and then the carbon powder and the substrate are combined into a resistor body through heat treatment. For metal film resistors, a metal film needs to be deposited on an insulating substrate, and then the resistor body is formed through photolithography and etching processes. For metal oxide resistors, the metal oxide powder needs to be mixed with a binder and pressed into a sheet, and then the resistor body is formed through a sintering process. For metal wire resistors, the metal wire needs to be wound into a spiral or straight shape, and then fixed by welding or crimping.

The third step is to prepare the terminals. The terminals of mainstream wirewound resistors are usually made of metal materials and are used to connect circuits. Methods for preparing terminals include welding, crimping, plugging, etc. In the process of preparing the terminals, attention should be paid to the connection firmness and conductivity between the terminals and the resistor body.

The fourth step is packaging. The packaging of mainstream wirewound resistors usually adopts plastic shell or ceramic shell to protect the resistor body and terminals and prevent the influence of the external environment on the resistor. The packaging process includes injection molding, pressing, hot pressing, etc., and it is necessary to ensure the firmness and sealing of the connection between the shell and the resistor body.

The fifth step is testing. The mainstream wirewound resistors that have been produced need to undergo rigorous testing, including resistance value testing, power capacity testing, voltage resistance testing, temperature characteristic testing, etc. Only resistors that have passed the test can be shipped.

In general, the production process of mainstream wirewound resistors is a complex process that requires multiple steps to complete. Manufacturers need to select appropriate materials, prepare resistor bodies, prepare terminals, package and test to ensure the production of reliable quality resistors. Only in this way can we meet customer needs and improve product competitiveness.

Mainstream wirewound resistors are a common electronic component used in circuits such as limiting current, regulating voltage, and dividing voltage. They are made of metal wire or carbon powder wrapped in insulating materials and have a certain resistance value. The production process of mainstream wirewound resistors is a complex process that requires multiple steps to complete. Let's take a detailed look at the production process of mainstream wirewound resistors.

First of all, the first step in producing mainstream wirewound resistors is to choose the right materials. Usually, the resistor body materials of mainstream wirewound resistors are carbon film, metal film, metal oxide, metal wire, etc. Different materials have different resistance values and power capacities, and manufacturers need to choose the right materials according to customer needs.

The second step is to prepare the resistor body. Depending on the selected material, the method of preparing the resistor body is also different. For carbon film resistors, the carbon powder needs to be evenly coated on the insulating substrate first, and then the carbon powder and the substrate are combined into a resistor body through heat treatment. For metal film resistors, a metal film needs to be deposited on an insulating substrate, and then the resistor body is formed through photolithography and etching processes. For metal oxide resistors, the metal oxide powder needs to be mixed with a binder and pressed into a sheet, and then the resistor body is formed through a sintering process. For metal wire resistors, the metal wire needs to be wound into a spiral or straight shape, and then fixed by welding or crimping.

The third step is to prepare the terminals. The terminals of mainstream wirewound resistors are usually made of metal materials and are used to connect circuits. Methods for preparing terminals include welding, crimping, plugging, etc. In the process of preparing the terminals, attention should be paid to the connection firmness and conductivity between the terminals and the resistor body.

The fourth step is packaging. The packaging of mainstream wirewound resistors usually adopts plastic shell or ceramic shell to protect the resistor body and terminals and prevent the influence of the external environment on the resistor. The packaging process includes injection molding, pressing, hot pressing, etc., and it is necessary to ensure the firmness and sealing of the connection between the shell and the resistor body.

The fifth step is testing. The mainstream wirewound resistors that have been produced need to undergo rigorous testing, including resistance value testing, power capacity testing, voltage resistance testing, temperature characteristic testing, etc. Only resistors that have passed the test can be shipped.

In general, the production process of mainstream wirewound resistors is a complex process that requires multiple steps to complete. Manufacturers need to select appropriate materials, prepare resistor bodies, prepare terminals, package and test to ensure the production of reliable quality resistors. Only in this way can we meet customer needs and improve product competitiveness.