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Preparation method of anti-cracking air purifier cast iron base

An air purifier and cast iron technology, applied in the manufacture of tools, heat treatment equipment, coatings, etc., can solve problems such as rust and cracks, and achieve the effects of improving production efficiency, eliminating tedious work, and shortening process time

Inactive Publication Date: 2017-03-22
安徽名杰净化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In real life, the cast iron base of the air purifier is prone to rust and cracks after being used for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] A preparation method for a cast iron base of an anti-crack air cleaner, comprising the following process steps:

[0013] 1) Casting treatment: the alloy composition and weight percentage of the cast iron base are: C2.1~2.3%, Si1.6~1.9%, Mn1.25~1.55%, P0.005~0.007%, S0.01~0.014 %, Cr1.6~2.1%, Mo0.35~0.47%, W0.09~0.11%, Ti0.02~0.12%, Bi0.18~0.22%, Co0.12~0.24%, Ca0.04~0.08% , the balance is iron;

[0014] 2) Salt bath treatment: the salt bath treatment temperature is 235-265°C, the salt bath treatment holding time is 1.2-1.8h, and the weight ratio of the molten salt components is: 22 parts of copper nitrite, 23 parts of soda ash, 12 parts of ferric chloride 4 parts, 4 parts of aluminum carbonate, 8.5 parts of magnesium nitrate;

[0015] 3) Anti-rust treatment: Steam treatment is carried out on the blanks that meet the dimensional tolerance requirements. The temperature of the steam treatment is 500-650°C, and the steam treatment time is 2-3 hours. Then, the blanks of th...

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Abstract

The invention discloses a preparation method of an anti-cracking air purifier cast iron base. The preparation method comprises following steps: 1, casting treatment, and 2, salt bath treatment, wherein salt bath treatment temperature is controlled to be 235 to 265 DEG C, and salt bath treatment thermal insulation time is controlled to be 1.2 to 1.8h. The anti-cracking air purifier cast iron base comprises, by weight, 2.1 to 2.3% of C, 1.6 to 1.9% of Si, 1.25 to 1.55% of Mn, 0.005 to 0.007% of P, 0.01 to 0.014% of S, 1.6 to 2.1% of Cr, 0.35 to 0.47% of Mo, 0.09 to 0.11% of W, 0.02 to 0.12% of Ti, 0.18 to 0.22% of Bi, 0.12 to 0.24% of Co, 0.04 to 0.08% of Ca, and the balance Fe. According to the preparation method, salt bath treatment is adopted to increase production efficiency, and the crystalline phase tissue of parts prepared via the preparation method is subtler.

Description

technical field [0001] The invention relates to the field of purifier manufacturing, in particular to a method for preparing a cast iron base of an anti-crack air purifier. Background technique [0002] There are many different technologies and media in an air purifier that enable it to provide clean and safe air to the user. Commonly used air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, superstructure photomineralization technology, HEPA high-efficiency filtration technology, electrostatic dust collection technology, etc.; material technologies mainly include: photocatalyst, activated carbon, Synthetic fibers, HEAP high-efficiency materials, negative ion generators, etc. [0003] In real life, the cast iron base of the air purifier is prone to rust and cracks after being used for a long time. Contents of the invention [0004] The purpose of the present invention is to provi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C37/10C21D5/00C21D1/46C23C8/06C23F17/00
CPCC21D1/46C21D5/00C22C37/10C23C8/06C23F17/00
Inventor 殷友生
Owner 安徽名杰净化科技有限公司