阅读说明：本技术 一种防腐效果好的改性铝型材及其制备方法 (Modified aluminum profile with good corrosion prevention effect and preparation method thereof ) 是由 程杰 苗小冬 于 2020-05-11 设计创作，主要内容包括：本发明公开了一种防腐效果好的改性铝型材,包括铝型材本身和铝型材防腐辅料,其中铝型材防腐辅料按质量份数称取如下：碱液60-70份,高锰酸钾10-14份,铬酸钾15-25份,磷酸锌15-25份,硝酸钠8-18份,强氧化剂5-7份,微量元素1-3份,稀土元素1-2份,氟改性聚丙烯酸酯共聚物1-7份,水40-50份。本发明通过采用碱液、高锰酸钾、铬酸钾、磷酸锌、硝酸钠、强氧化剂、微量元素、稀土元素、氟改性聚丙烯酸酯共聚物和水为辅料的制备原料,经过辅料处理后的铝型材,内部性能稳定、综合性能如拉伸性、硬度和强度好,可以在铝合金表面引入具有特色性能的元素,形成性能优异的表面合金强化层,该改性铝型材整体材料的硬度、耐磨性和耐腐蚀性跟传统的相比提升30％以上。(The invention discloses a modified aluminum profile with a good corrosion prevention effect, which comprises an aluminum profile body and an aluminum profile corrosion prevention auxiliary material, wherein the aluminum profile corrosion prevention auxiliary material is weighed according to the following parts by weight: 60-70 parts of alkali liquor, 10-14 parts of potassium permanganate, 15-25 parts of potassium chromate, 15-25 parts of zinc phosphate, 8-18 parts of sodium nitrate, 5-7 parts of strong oxidant, 1-3 parts of trace elements, 1-2 parts of rare earth elements, 1-7 parts of fluorine modified polyacrylate copolymer and 40-50 parts of water. The aluminum profile is prepared by taking alkali liquor, potassium permanganate, potassium chromate, zinc phosphate, sodium nitrate, a strong oxidant, trace elements, rare earth elements, a fluorine modified polyacrylate copolymer and water as auxiliary materials, has stable internal performance and good comprehensive performance such as stretchability, hardness and strength after the auxiliary materials are treated, elements with special performance can be introduced into the surface of the aluminum alloy to form a surface alloy strengthening layer with excellent performance, and the hardness, wear resistance and corrosion resistance of the whole material of the modified aluminum profile are improved by more than 30% compared with those of the traditional aluminum profile.)

1. The modified aluminum profile with good corrosion resistance is characterized in that: the aluminum profile anti-corrosion material comprises an aluminum profile and an aluminum profile anti-corrosion auxiliary material, wherein the aluminum profile anti-corrosion auxiliary material is weighed according to the following parts by weight: 60-70 parts of alkali liquor, 10-14 parts of potassium permanganate, 15-25 parts of potassium chromate, 15-25 parts of zinc phosphate, 8-18 parts of sodium nitrate, 5-7 parts of strong oxidant, 1-3 parts of trace elements, 1-2 parts of rare earth elements, 1-7 parts of fluorine modified polyacrylate copolymer and 40-50 parts of water.

2. The modified aluminum profile with good corrosion prevention effect as claimed in claim 1, is characterized in that: the strong oxidant is any one of hydrogen peroxide, potassium permanganate and hydrogen sulfide.

3. The modified aluminum profile with good corrosion prevention effect as claimed in claim 1, is characterized in that: the trace elements are a mixture of Ti, Si and Zr, wherein the mass part ratio of the Ti, Si and Zr elements is 2: 1: 1.

4. the modified aluminum profile with good corrosion prevention effect as claimed in claim 1, is characterized in that: the total content of lanthanum and neodymium in the rare earth elements exceeds 30 percent.

5. The preparation method of the modified aluminum profile with good corrosion prevention effect according to claim 1 is characterized by comprising the following steps: the method comprises the following steps:

s1: weighing alkali liquor, potassium permanganate, potassium chromate, zinc phosphate, sodium nitrate, a strong oxidant, trace elements, rare earth elements, a fluorine modified polyacrylate copolymer and water in parts by weight for later use;

s2: preparing auxiliary materials, namely sequentially adding potassium permanganate, potassium chromate, zinc phosphate, sodium nitrate, a strong oxidant, trace elements, rare earth elements and a fluorine modified polyacrylate copolymer into water, uniformly dispersing, and dispersing and mixing for 10-20min to obtain a mixed liquid for later use;

s3: preheating an aluminum profile, namely preheating and heating the aluminum profile to 50-60 ℃, and preheating the aluminum profile for later use;

s4: static dipping treatment: heating the mixed liquid to 30-40 ℃, and then soaking the aluminum profile into the mixed liquid for 3-5 min;

s5: and (3) drying: carrying out hot air circulation drying treatment on the aluminum profile subjected to the dipping treatment at the temperature of 70-80 ℃, wherein the drying time is 20-30 min;

s6: washing, namely heating the alkali liquor to 30-40 ℃, putting the dried aluminum profile into the alkali liquor for washing, and fully washing for later use;

s7: and (3) cleaning and drying, namely washing the washed aluminum profile under clean water, and after complete washing, carrying out hot air circulation drying treatment at the temperature of 70-80 ℃ for 20-30min to finish the preparation of the modified aluminum profile with good corrosion resistance.

6. The preparation method of the modified aluminum profile with good corrosion prevention effect according to claim 5, characterized by comprising the following steps: the alkali liquor in the step S1 is sodium hydroxide solution, and the pH value of the sodium hydroxide solution is 7.5-8.5.

7. The preparation method of the modified aluminum profile with good corrosion prevention effect according to claim 5, characterized by comprising the following steps: and the temperature control modes of the steps S3-S6 are all temperature control by adopting a water bath heating mode.

8. The preparation method of the modified aluminum profile with good corrosion prevention effect according to claim 5, characterized by comprising the following steps: the temperature range of the hot air circulation drying is 35-100 ℃ when the drying is performed in the steps S5 and S7.

Technical Field

The invention relates to the technical field of aluminum profiles, in particular to a modified aluminum profile with a good corrosion prevention effect, and meanwhile, the invention also relates to a preparation method of the modified aluminum profile with the good corrosion prevention effect.

Background

A process for plating Ti-Au on aluminium section features that the preplating and electroplating steps are added to conventional Ti-plating process, and the activated plated part is chemically treated in the aqueous solution of edible salt and hydrochloric acid.

When the aluminum profile is processed and produced, the stability, the integral hardness and the strength improvement degree of the aluminum profile material prepared in the prior art are not enough, the corrosion resistance and the wear resistance are general, the use in a special environment is difficult to meet, and certain limitation is realized.

Disclosure of Invention

The invention aims to provide a modified aluminum profile with good corrosion resistance effect and a preparation method thereof, the aluminum profile treated by auxiliary materials has stable internal performance and good comprehensive performance such as stretchability, hardness and strength, elements with characteristic performance can be introduced into the surface of the aluminum alloy to form a surface alloy strengthening layer with excellent performance, and the hardness, wear resistance and corrosion resistance of the whole material of the modified aluminum profile are improved by more than 30% compared with the traditional material, so that the problems in the background art are solved.

In order to achieve the purpose, the invention provides the following technical scheme: the modified aluminum profile with good corrosion prevention effect comprises an aluminum profile and aluminum profile corrosion prevention auxiliary materials, wherein the aluminum profile corrosion prevention auxiliary materials are weighed according to the following parts by mass: 60-70 parts of alkali liquor, 10-14 parts of potassium permanganate, 15-25 parts of potassium chromate, 15-25 parts of zinc phosphate, 8-18 parts of sodium nitrate, 5-7 parts of strong oxidant, 1-3 parts of trace elements, 1-2 parts of rare earth elements, 1-7 parts of fluorine modified polyacrylate copolymer and 40-50 parts of water.

Preferably, the strong oxidant is any one of hydrogen peroxide, potassium permanganate and hydrogen sulfide.

Preferably, the trace elements are a mixture of Ti, Si and Zr, wherein the mass part ratio of the Ti, Si and Zr elements is 2: 1: 1.

preferably, the total content of lanthanum and neodymium in the rare earth elements is more than 30%.

The invention also provides a preparation method of the modified aluminum profile with good corrosion resistance effect, which comprises the following steps:

s1: weighing alkali liquor, potassium permanganate, potassium chromate, zinc phosphate, sodium nitrate, a strong oxidant, trace elements, rare earth elements, a fluorine modified polyacrylate copolymer and water in parts by weight for later use;

s2: preparing auxiliary materials, namely sequentially adding potassium permanganate, potassium chromate, zinc phosphate, sodium nitrate, a strong oxidant, trace elements, rare earth elements and a fluorine modified polyacrylate copolymer into water, uniformly dispersing, and dispersing and mixing for 10-20min to obtain a mixed liquid for later use;

s3: preheating an aluminum profile, namely preheating and heating the aluminum profile to 50-60 ℃, and preheating the aluminum profile for later use;

s4: static dipping treatment: heating the mixed liquid to 30-40 ℃, and then soaking the aluminum profile into the mixed liquid for 3-5 min;

s5: and (3) drying: carrying out hot air circulation drying treatment on the aluminum profile subjected to the dipping treatment at the temperature of 70-80 ℃, wherein the drying time is 20-30 min;

s6: washing, namely heating the alkali liquor to 30-40 ℃, putting the dried aluminum profile into the alkali liquor for washing, and fully washing for later use;

s7: and (3) cleaning and drying, namely washing the washed aluminum profile under clean water, and after complete washing, carrying out hot air circulation drying treatment at the temperature of 70-80 ℃ for 20-30min to finish the preparation of the modified aluminum profile with good corrosion resistance.

Preferably, the alkali solution in step S1 is a sodium hydroxide solution, and the pH value of the sodium hydroxide solution is 7.5-8.5.

Preferably, the temperature control modes of the steps S3-S6 all adopt a water bath heating mode for temperature control.

Preferably, the temperature range of the hot air circulation drying is 35-100 ℃ when the drying is performed in the steps S5 and S7.

Compared with the prior art, the invention has the beneficial effects that: the invention strictly controls the proportion of each component and the preparation process parameter of the modified aluminum profile with good corrosion prevention effect, and adopts alkali liquor, potassium permanganate, potassium chromate, zinc phosphate, sodium nitrate, a strong oxidant, trace elements, rare earth elements, fluorine modified polyacrylate copolymer and water as preparation raw materials of auxiliary materials, the aluminum profile treated by the auxiliary materials has stable internal performance and good comprehensive performance such as stretchability, hardness and strength, and elements with characteristic performance can be introduced on the surface of the aluminum alloy by adding the trace elements and the rare earth elements to form a surface alloy strengthening layer with excellent performance, and the hardness, wear resistance and corrosion resistance of the whole material of the modified aluminum profile are improved by more than 30 percent compared with the traditional material.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The invention provides a modified aluminum profile with good corrosion prevention effect, wherein the mass parts and specific embodiment data of aluminum profile corrosion prevention auxiliary materials are as follows: