Boron-containing heat-treatment-free wear-resistant lining plate and preparation method thereof

Abstract

The invention discloses a boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components in percentage by weight: 30-60% of gray iron, 40-60% of scrap steel, 2-4% of carbon, 1-3% of silicon, 0.2-1% of manganese, 0.002-1% of boron and less than or equal to 0.6% of sulfur. And less than or equal to 1.2% of phosphorus. The boron-containing heat-treatment-free lining plate manufactured by the invention is simple in production process, the cost of about ton of the lining plate containing 3% of Cr can be saved by 300-600 yuan, the energy consumption can be greatly saved, the production period is shortened, and the process cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wear-resistant cost processing, and in particular to a boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. Background Art

[0002] Since the wear-resistant lining of concrete mixer is a vulnerable material, Cr-containing alloy wear-resistant materials are currently used in the market. Due to the large amount of Cr added and the white cast iron, in order to ensure impact resistance, heat treatment must be used to improve its impact resistance, and the process and cost are increased.

[0003] Currently, the wear-resistant linings on the market are all made by casting and heating treatment methods, and the cost of each 1% Cr is about 200 yuan, and the cost of the heat treatment process is 300-400 yuan / T. The production cost of wear-resistant linings is relatively high.

[0004] In order to solve the above technical problems, it is urgent to provide a boron-containing heat-treatment-free wear-resistant lining and a preparation method thereof. Summary of the invention

[0005] To solve the above technical problems, the technical solution provided by the present invention is: a boron-containing heat-treatment-free wear-resistant lining and a preparation method thereof, the wear-resistant lining comprising the following components by weight: 30-60% gray iron, 40-60% scrap steel, 2%-4% carbon, 1%-3% silicon, 0.2%-1% manganese, 0.002%-1% boron, ≤0.6% sulfur; ≤1.2% phosphorus.

[0006] Furthermore, the wear-resistant lining includes the following components by weight: 30% grey iron, 60% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur, and 1.2% phosphorus.

[0007] Furthermore, the wear-resistant lining includes the following components by weight: 40% grey iron, 50% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur, and 1.2% phosphorus.

[0008] Furthermore, the wear-resistant lining includes the following components by weight: 50% grey iron, 40% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur, and 1.2% phosphorus.

[0009] Furthermore, the wear-resistant lining includes the following components by weight: 50% grey iron, 40% scrap steel, 4% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur, and 0.4% phosphorus.

[0010] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof, comprising the following steps:

[0011] (1) First, 30-60% of gray iron and 40-60% of scrap steel are melted in a medium frequency furnace;

[0012] (2) After melting, add appropriate amount of ferrosilicon, ferromanganese and ferroboron alloy and cast it into shape using clay sand process;

[0013] (3) After sand cleaning, grinding, spraying and packaging, it can be shipped.

[0014] The advantages of the invention compared with the prior art are:

[0015] The boron-containing heat-treatment-free lining produced by the present invention has a simple production process, and can save 300-600 yuan per ton of cost of a 3% Cr lining, and can greatly save energy consumption, save production cycles, and reduce process costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the test data result diagram of friction force, friction coefficient, loading force and time in test example 1;

[0017] Figure 2 This is the test data result diagram of friction force, friction coefficient, loading force and time in Test Example 2;

[0018] Figure 3 This is the test data result diagram of friction force, friction coefficient, loading force and time in test example 1. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0020] The present invention is described in detail with reference to the accompanying drawings.

[0021] The present invention provides a boron-containing heat-treatment-free wear-resistant lining and a preparation method thereof in a specific implementation. 1. A boron-containing heat-treatment-free wear-resistant lining, characterized in that the wear-resistant lining comprises the following components by weight: 30-60% gray iron, 40-60% scrap steel, 2%-4% carbon, 1%-3% silicon, 0.2%-1% manganese, 0.002%-1% boron, ≤0.6% sulfur; ≤1.2% phosphorus.

[0022] Embodiment 1:

[0023] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 30% gray iron, 60% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

[0024] Embodiment 2:

[0025] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 40% gray iron, 50% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

[0026] Embodiment three:

[0027] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 50% gray iron, 40% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

[0028] Embodiment 4:

[0029] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 50% gray iron, 40% scrap steel, 4% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 0.4% phosphorus.

[0030] Embodiment five:

[0031] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 30% gray iron, 60% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

[0032] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof, comprising the following steps:

[0033] (1) First, 30-60% of gray iron and 40-60% of scrap steel are melted in a medium frequency furnace;

[0034] (2) After melting, add appropriate amount of ferrosilicon, ferromanganese and ferroboron alloy and cast it into shape using clay sand process;

[0035] (3) After sand cleaning, grinding, spraying and packaging, it can be shipped.

[0036] Embodiment six:

[0037] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 40% gray iron, 50% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

[0038] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof, comprising the following steps:

[0039] (1) First, 30-60% of gray iron and 40-60% of scrap steel are melted in a medium frequency furnace;

[0040] (2) After melting, add appropriate amount of ferrosilicon, ferromanganese and ferroboron alloy and cast it into shape using clay sand process;

[0041] (3) After sand cleaning, grinding, spraying and packaging, it can be shipped.

[0042] Embodiment seven:

[0043] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 50% gray iron, 40% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

[0044] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof, comprising the following steps:

[0045] (1) First, 30-60% of gray iron and 40-60% of scrap steel are melted in a medium frequency furnace;

[0046] (2) After melting, add appropriate amount of ferrosilicon, ferromanganese and ferroboron alloy and cast it into shape using clay sand process;

[0047] (3) After sand cleaning, grinding, spraying and packaging, it can be shipped.

[0048] Embodiment eight:

[0049] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof. The wear-resistant lining plate comprises the following components by weight: 50% gray iron, 40% scrap steel, 4% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 0.4% phosphorus.

[0050] A boron-containing heat-treatment-free wear-resistant lining plate and a preparation method thereof, comprising the following steps:

[0051] (1) First, 30-60% of gray iron and 40-60% of scrap steel are melted in a medium frequency furnace;

[0052] (2) After melting, add appropriate amount of ferrosilicon, ferromanganese and ferroboron alloy and cast it into shape using clay sand process;

[0053] (3) After sand cleaning, grinding, spraying and packaging, it can be shipped.

[0054] Test process:

[0055] The present invention conducts reciprocating friction tests on the manufactured wear-resistant lining, including test one, test two and test three:

[0056] The product experimental data in Test 1 is as follows:

[0057] Sample No. 1 Material Name Friction length 5mm Experiment time 30Min Friction frequency 100mm / min Load setting automatic Maximum friction coefficient 0.880 Average friction coefficient 0.526 Ambient temperature Ambient humidity

[0058] Load setting

[0059]

[0060]

[0061] Temperature setting

[0062]

[0063] The relationship between friction force, friction coefficient, loading coefficient and time in test example 1 is as follows: Figure 1 shown.

[0064] The product experimental data in Test 2 is as follows:

[0065] Sample No. 2 Material Name Friction length 5mm Experiment time 30Min Friction frequency 100mm / min Load Setting automatic Maximum friction coefficient 0.827 Average friction coefficient 0.689 Ambient temperature Ambient humidity

[0066] Load Setting

[0067]

[0068]

[0069] Temperature setting

[0070] Number of segments Temperature(℃) time Number of segments Temperature(℃) time 0 0 0 10 0 0 1 0 0 11 0 0 2 0 0 12 0 0 3 0 0 13 0 0 4 0 0 14 0 0 5 0 0 15 0 0 6 0 0 16 0 0 7 0 0 17 0 0 8 0 0 18 0 0 9 0 0 19 0 0

[0071] The relationship between friction force, friction coefficient, loading coefficient and time in test example 2 is as follows: Figure 2 shown.

[0072] The product experimental data in Test 3 is as follows:

[0073] Sample No. 3 Material Name Friction length 5mm Experiment time 30Min Friction frequency 100mm / min Load Setting automatic Maximum friction coefficient 0.905 Average friction coefficient 0.522 Ambient temperature Ambient humidity

[0074] Load Setting

[0075]

[0076] Temperature setting

[0077] Number of segments Temperature(℃) time Number of segments Temperature(℃) time 0 0 0 10 0 0 1 0 0 11 0 0 2 0 0 12 0 0 3 0 0 13 0 0 4 0 0 14 0 0 5 0 0 15 0 0 6 0 0 16 0 0 7 0 0 17 0 0 8 0 0 18 0 0 9 0 0 19 0 0

[0078] The relationship between friction force, friction coefficient, loading coefficient and time in test example 3 is as follows: Figure 3 shown.

[0079] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A boron-containing heat-treatment-free wear-resistant lining, characterized in that: The wear-resistant lining plate includes the following components by weight: 30-60% of gray iron, 40-60% of scrap steel, 2%-4% of carbon, 1%-3% of silicon, 0.2%-1% of manganese, 0.002%-1% of boron, ≤0.6% of sulfur, and ≤1.2% of phosphorus.

2. The boron-containing heat-treatment-free wear-resistant liner and preparation method thereof according to claim 1, characterized in that: The wear-resistant lining includes the following components by weight: 30% gray iron, 60% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

3. The boron-containing heat-treatment-free wear-resistant lining according to claim 1, characterized in that: The wear-resistant lining includes the following components by weight: 40% gray iron, 50% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 1.2% phosphorus.

4. The boron-containing heat-treatment-free wear-resistant lining according to claim 1, characterized in that: The wear-resistant lining includes the following components by weight: 50% gray iron, 40% scrap steel, 2.2% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur, and 1.2% phosphorus.

5. The boron-containing heat-treatment-free wear-resistant lining according to claim 1, characterized in that: The wear-resistant lining plate includes the following components by weight: 50% gray iron, 40% scrap steel, 4% carbon, 3% silicon, 1% manganese, 1% boron, 0.6% sulfur and 0.4% phosphorus.

6. The method for preparing a boron-containing heat-treatment-free wear-resistant lining according to claim 1, characterized in that: The method comprises the following steps: (1) First, 30-60% of gray iron and 40-60% of scrap steel are melted in a medium frequency furnace; (2) After melting, add appropriate amount of ferrosilicon, ferromanganese and ferroboron alloy and cast it into shape using clay sand process; (3) After sand cleaning, grinding, spraying and packaging, it can be shipped.

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