阅读说明：本技术 一种耐磨不锈钢及其制备方法 (Wear-resistant stainless steel and preparation method thereof ) 是由 陈善辉 罗锋 张晴晴 于 2019-09-17 设计创作，主要内容包括：本发明公开了一种耐磨不锈钢及其制备方法,为实现上述目的,本一种耐磨不锈钢及其制备方法,包括以下重量份的原料,碳：1.2-2.2％,铬：16-20％,锰：10-16.5％,钼：0.15-3％,镍：0.01-0.016％,铝：0.15-0.18％,铌：0.018-0.032％,硫：0.016-0.018％,金属耐磨剂：0.08-0.18％,余量为Fe和不可避免的杂质元素。本一种耐磨不锈钢及其制备方法,结构简单,具有良好的耐磨性,而且成本较低。(The invention discloses a wear-resistant stainless steel and a preparation method thereof, and in order to achieve the purpose, the wear-resistant stainless steel and the preparation method thereof comprise the following raw materials in parts by weight: 1.2-2.2%, chromium: 16-20%, manganese: 10-16.5%, molybdenum: 0.15-3%, nickel: 0.01-0.016%, aluminum: 0.15 to 0.18%, niobium: 0.018 to 0.032%, sulfur: 0.016-0.018%, metal wear-resistant agent: 0.08-0.18%, and the balance of Fe and inevitable impurity elements. The wear-resistant stainless steel and the preparation method thereof have the advantages of simple structure, good wear resistance and lower cost.)

1. The wear-resistant stainless steel and the preparation method thereof are characterized by comprising the following raw materials in parts by weight: 1.2-2.2%, chromium: 16-20%, manganese: 10-16.5%, molybdenum: 0.15-3%, nickel: 0.01-0.016%, aluminum: 0.15 to 0.18%, niobium: 0.018 to 0.032%, sulfur: 0.016-0.018%, metal wear-resistant agent: 0.08-0.18%, and the balance of Fe and inevitable impurity elements.

2. The wear-resistant stainless steel and the preparation method thereof according to claim 1, wherein the wear-resistant stainless steel comprises the following raw materials in parts by weight: 1.8%, chromium: 18%, manganese: 11.5%, molybdenum: 1.1%, nickel: 0.014%, aluminum: 0.16%, niobium: 0.028%, sulfur: 0.016%, metal antiwear agent: 0.1% and the balance of Fe and inevitable impurity elements.

3. The wear-resistant stainless steel and the preparation method thereof according to claim 1, wherein the wear-resistant stainless steel comprises the following raw materials in parts by weight: 2.2%, chromium: 17%, manganese: 13%, molybdenum: 0.18%, nickel: 0.016%, aluminum: 0.16%, niobium: 0.032%, sulfur: 0.017%, metal anti-wear agent: 0.14%, and the balance of Fe and inevitable impurity elements.

4. The wear-resistant stainless steel and the preparation method thereof according to the claim 2 or 3, characterized by comprising the following raw materials in parts by weight, wherein the mass percentage of nickel and niobium is 1: 1.8.

5. The preparation method of the wear-resistant stainless steel is characterized by comprising the following specific steps of:

step 1: smelting: putting the cast iron into a smelting furnace to be smelted to obtain molten steel, and introducing inert gas;

step 2: refining molten steel: transferring the molten steel into an electric arc furnace for smelting for three times to obtain smelting molten steel; carrying out vacuum oxygen blowing decarburization external refining on the obtained smelting molten steel for 10-16 minutes to obtain refined molten steel;

and step 3: mixing: adding carbon, chromium, manganese, molybdenum, nickel, aluminum, niobium, sulfur and a metal wear-resistant agent according to the formula proportion, and uniformly stirring to obtain alloy molten steel;

and 4, step 4: blank preparation: preparing the alloy molten steel obtained in the step 3 into an ingot;

and 5: hot rolling: performing hot forging treatment on the ingot obtained in the step 4, wherein the initial forging temperature is 1150-1230 ℃, the final forging temperature is 1010-1100 ℃, the heat preservation temperature of hot forging is 1050-1150 ℃, and the heat preservation time of hot forging is 8-10 h;

step 6: and (5) annealing and tempering the hot forged stainless steel in the step (5) to obtain the wear-resistant stainless steel.

Technical Field

The invention relates to the field of stainless steel, in particular to wear-resistant stainless steel and a preparation method thereof.

Background

Stainless steel is a kind of stainless steel widely used nowadays, has good corrosivity, heat resistance, low-temperature strength and mechanical properties, and is widely used in household products, automobile parts, medical appliances, building materials, chemical industry, food industry, agriculture, ship parts and the like.

The existing stainless steel has the problem that the wear resistance cannot track the formula cost, namely, the wear resistance of the stainless steel is improved, and the cost needs to be increased much more quickly, so that the application value is lost. The content of nickel in the widely used stainless steel is higher, 8% -10%, and the nickel resource in China is deficient, so that the stainless steel is expensive, and in recent years, the price of nickel is continuously rising, the rising speed is high, and the cost of the stainless steel is continuously increased.

Disclosure of Invention

The invention provides wear-resistant stainless steel and a preparation method thereof, which have the advantages of simple structure, good wear resistance and lower cost.

In order to achieve the purpose, the wear-resistant stainless steel comprises the following raw materials in parts by weight: 1.2-2.2%, chromium: 16-20%, manganese: 10-16.5%, molybdenum: 0.15-3%, nickel: 0.01-0.016%, aluminum: 0.15 to 0.18%, niobium: 0.018 to 0.032%, sulfur: 0.016-0.018%, metal wear-resistant agent: 0.08-0.18%, and the balance of Fe and inevitable impurity elements.

Further, the carbon-containing composite material comprises the following raw materials in parts by weight: 1.8%, chromium: 18%, manganese: 11.5%, molybdenum: 1.1%, nickel: 0.014%, aluminum: 0.16%, niobium: 0.028%, sulfur: 0.016%, metal antiwear agent: 0.1% and the balance of Fe and inevitable impurity elements.

Further, the carbon-containing composite material comprises the following raw materials in parts by weight: 2.2%, chromium: 17%, manganese: 13%, molybdenum: 0.18%, nickel: 0.016%, aluminum: 0.16%, niobium: 0.032%, sulfur: 0.017%, metal anti-wear agent: 0.14%, and the balance of Fe and inevitable impurity elements.

Further, the alloy comprises the following raw materials in parts by weight, wherein the mass percentage of nickel to niobium is 1: 1.8.

The preparation method of the wear-resistant stainless steel is characterized by comprising the following specific steps of:

step 1: putting the cast iron into a smelting furnace to be smelted to obtain molten steel, and introducing inert gas;

step 2: refining molten steel: transferring the molten steel into an electric arc furnace for smelting for three times to obtain smelting molten steel; carrying out vacuum oxygen blowing decarburization external refining on the obtained smelting molten steel for 10-16 minutes to obtain refined molten steel;

and step 3: mixing: adding carbon, chromium, manganese, molybdenum, nickel, aluminum, niobium, sulfur and a metal wear-resistant agent according to the formula proportion, and uniformly stirring to obtain alloy molten steel;

and 4, step 4: blank preparation: preparing the alloy molten steel obtained in the step 3 into an ingot;

and 5: hot rolling: performing hot forging treatment on the ingot obtained in the step 4, wherein the initial forging temperature is 1150-1230 ℃, the final forging temperature is 1010-1100 ℃, the heat preservation temperature of hot forging is 1050-1150 ℃, and the heat preservation time of hot forging is 8-10 h;

step 6: and (5) annealing and tempering the hot forged stainless steel in the step (5) to obtain the wear-resistant stainless steel.

Compared with the prior art, the wear-resistant stainless steel and the preparation method thereof use carbon, chromium, manganese, molybdenum, nickel, aluminum, niobium, sulfur and iron as raw materials, reduce the production cost of the traditional stainless steel, add a metal wear-resistant agent to increase the wear resistance of the stainless steel, and meet the condition of good wear resistance under the condition of low cost.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.