Rare earth-containing Cu-Zn-Co steel cord coating and preparation method thereof
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A steel cord and coating technology, applied in the direction of rolling resistance optimization, road transportation emission reduction, etc., can solve the problems of poor initial adhesion performance of rubber, and achieve the effect of improving the bonding force, increasing the possibility, and refining the coating structure.
Pending Publication Date: 2022-06-03
NANJING VOCATIONAL UNIV OF IND TECH
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[0004] The object of the present invention is to provide a kind of rare earth-containing Cu-Zn-Co steel cord coating and preparation method thereof, to solve the existing Cu-Zn-Co coated steel cord proposed in the above-mentioned background technology, and Cu-Zn coating Poor initial adhesion to rubber compared to steel cords
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Embodiment 1
[0021] A rare earth-containing Cu-Zn-Co steel cord coating and a preparation method thereof, the specific preparation method steps are as follows:
[0022] Step 1: φ1.80mm smooth steel wire pay-off;
[0023] Step 2: The steel wire is pickled with dilute hydrochloric acid, and the concentration of hydrochloric acid is 150±50g / L;
[0024] Step 3: Wash and dry the steel wire treated in Step 2;
[0025] Step 4: The steel wire treated in Step 3 is electroplated with copper through a copper plating tank, and the cobalt plating tank is electroplated with cobalt, and the plating solution contains rare earth additives;
[0026] Step 5: The steel wire after step 4 is sprayed with Zn powder on the surface of the steel wire with a plasma spray gun;
[0027] Step 6: The steel wire after step 5 is diffused through the intermediate frequency furnace to obtain the rare earth-containing Cu-Zn-Co plated steel wire.
[0028] Wherein, in step 4, the copper plating bath is 50-100g / L of copper s...
Embodiment 2
[0035] A rare earth-containing Cu-Zn-Co steel cord coating and a preparation method thereof, the specific preparation method steps are as follows:
[0036] Step 1: φ1.94mm smooth steel wire pay-off;
[0037] Step 2: The steel wire is pickled with dilute hydrochloric acid, and the concentration of hydrochloric acid is 150±50g / L;
[0038] Step 3: Wash and dry the steel wire treated in Step 2;
[0039] Step 4: The steel wire treated in Step 3 is electroplated with copper through a copper plating tank, and the cobalt plating tank is electroplated with cobalt, and the plating solution contains rare earth additives;
[0040] Step 5: The steel wire after step 4 is sprayed with Zn powder on the surface of the steel wire with a plasma spray gun;
[0041] Step 6: The steel wire after step 5 is diffused through the intermediate frequency furnace to obtain the rare earth-containing Cu-Zn-Co plated steel wire.
[0042] Wherein, in step 4, the copper plating bath is 50-100g / L of copper s...
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Abstract
The invention discloses a rare earth-containing Cu-Zn-Co steel cord coating and a preparation method thereof. The preparation method specifically comprises the following steps: step 1, paying off a smooth steel wire; 2, pickling the steel wire with diluted hydrochloric acid, wherein the concentration of the hydrochloric acid is 150 +/-50g/L; thirdly, the steel wire treated in the second step is washed and dried; fourthly, the steel wire treated in the third step is subjected to copper electroplating through a copper plating tank and cobalt electroplating through a cobalt plating tank, and a plating solution contains a rare earth additive; fifthly, Zn powder is sprayed on the surface of the steel wire obtained in the fourth step through a plasma spray gun; sixthly, the steel wire obtained in the fifth step passes through an intermediate frequency furnace, so that coating metal is diffused, and the steel wire containing the rare earth Cu-Zn-Co coating is obtained; according to the rare earth-containing Cu-Zn-Co steel cord coating and the preparation method thereof, rare earth is added, the coating structure is refined, the initial bonding performance of the coating and rubber is improved, meanwhile, the coating can have more excellent damp-heat aging bonding performance, the use of Co elements in rubber products can be reduced, rubber cracking and aging are retarded, and the durability of rubber is improved.
Description
technical field [0001] The invention belongs to the technical field of metal product coating, in particular to a rare earth-containing Cu-Zn-Co steel cord coating and a preparation method thereof. Background technique [0002] Elongated steel elements such as brass-coated steel wires and steel cords are widely used to enhance the bond of rubber products such as tires. Cobalt complexes are added to the rubber compound in order to have good adhesion formation and reduce the rate of adhesion deterioration, especially due to aging under hot and humid conditions. However, cobalt is considered a detrimental substance to rubber because, like most transition metals, cobalt is an oxidation catalyst. As a result, the oxidation of diene-based rubber molecules is accelerated, which leads to early rubber aging, increasing tire service performance by increasing the cobalt content of the steel cord coating. [0003] However, the existing Cu-Zn-Co coated steel cord has better aging adhesi...
Claims
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Application Information
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