Method and device for preventing iron screw rods from rusting
A technology of screw and iron screw, which is applied in the field of preventing iron screw from rusting, and can solve problems such as environmental pollution, harm to human health, and complicated process
Inactive Publication Date: 2010-07-14
丰兴精密产业(惠州)有限公司
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Problems solved by technology
According to statistics, every tens of millions of tons of steel in the world has turned into rust, and the damage caused by the destruction of steel products has caused incalculable losses in terms of production stoppage, product quality decline, environmental pollution, harm to human health, and even serious accidents. Yes, in the prior art, the antirust treatment of iron screws is generally achieved by nickel plating, but this method is not only costly and complicated, but also the effect of preventing iron screws from rusting is not ideal
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[0031] The invention provides a method and equipment for preventing iron screw from rusting, which is applied in the technical field of iron screw rust prevention. The basic idea includes: firstly, performing antirust treatment on the iron screw before chemical heat treatment, and then performing chemical heat treatment on the iron screw, Then, the anti-rust treatment after chemical heat treatment is carried out on the iron screw, which prevents the iron screw from rusting caused by the uneven nitriding surface caused by dust, and prevents the iron screw from rusting caused by the water vapor in the chemical heat treatment furnace. Rust, to prevent the iron screw from rusting caused by the contact of the iron screw with oxygen due to high temperature, to prevent the iron screw from rusting due to the uneven nitriding surface caused by dust, and to prevent the iron screw from rusting due to the depth of the nitrided layer Insufficient iron screw caused by rust, so as to achieve ...
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The invention discloses a method and a device for preventing iron screw rods from rusting, which is applicable to the technical field of the rust prevention of iron screw rods. The method comprises the following steps: firstly carrying out the rust prevention treatment on the iron screw rods before the chemical heat treatment, then carrying out the chemical heat treatment on the iron screw rods, and subsequently carrying out the rust prevention treatment after the chemical heat treatment, thereby preventing the rusting of the iron screw rods due to the uneven nitrided surface caused by dust, preventing the rusting of the iron screw rods due to the vapor in a chemical heat treatment furnace, preventing the rusting of the iron screw rods due to the contact of the iron screw rods and oxygen as a result of high temperature, preventing the rusting of the iron screw rods due to the insufficient depth of the nitrided layer, and further achieving the purpose of preventing the iron screw rods from rusting.
Description
technical field [0001] The invention relates to the technical field of iron screw rust prevention, in particular to a method and equipment for preventing iron screw rust. Background technique [0002] Rust consists of iron chlorides, which form when iron combines with oxygen dissolved in water. [0003] When a drop of rain falls on the surface of a piece of shiny iron, the drop remains clean for a short time. After a while, however, the iron and the oxygen in the water begin to combine to form iron oxide, or rust. The water droplets will turn reddish and the rust will be suspended in the water. As the water droplets evaporate, the rust is left on the surface, forming a reddish rust layer. [0004] Since items made of steel and iron are often stored for long periods of time, preventing rust is an important issue. [0005] Ordinary steel products gradually change color in humid air, and a reddish-brown substance is formed on the surface. This phenomenon is called steel rus...
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IPC IPC(8): C23F15/00C23C8/26
Inventor 沈旗卫蒙照辉
Owner 丰兴精密产业(惠州)有限公司