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Hard coating composite side plate for ceramic mold and manufacturing method thereof
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A technology of hard coating and side plate, applied in ceramic molding machines, ceramic molding linings, manufacturing tools, etc., can solve the problems of low bonding strength and high price, achieve high cost performance, reduce mold cost consumption, and simple process Effect
Inactive Publication Date: 2011-06-01
KING STRONG MATERIAL ENG LTD
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[0004] In order to solve the technical problems of high price and low bonding strength of the existing cemented carbide composite side plate, the present invention proposes a low-cost, high bonding strength ceramic mold hard-coated composite side plate and its manufacturing method
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Embodiment 1
[0029] Embodiment 1: The preparation process of the Fe-based WC hard-coated composite side plate with a specification of 660×30×25 follows the steps below:
[0030] Step 1: Select No. 45 steel to make a ceramic mold side plate substrate with a specification of 660×30×25, and open a U-shaped groove on the working surface of the side plate substrate with a width of 10mm and a depth of 5mm.
[0031] Step 2: The selected components are C (3.0wt.%), Ni (4.5wt.%), Cr (32wt.%), Si (1.5wt.%), B (2.5wt.%), Fe (56.5wt.%) %) to configure Fe-based alloy powder; then add 45 wt.% of WC powder to 45 wt.% of Fe-based alloy powder and mix ball milling.
[0032] Step 3: Fill the ball abrasive into the U-shaped groove, which is 1 / 3 of the groove depth.
[0033] Step 4: sintering in a vacuum furnace at 1100° C., and the holding time is 10 minutes.
[0034] Step 5: Repeat step 3 and step 4 three times, so that the hard coating powder melts and diffuses to fill the entire U-shaped groove, forming...
Embodiment 2
[0036] Embodiment 2: The preparation process of the Fe-based TiC hard-coated composite side plate with a specification of 860×30×25 follows the steps below:
[0037] Step 1: Select No. 50 steel to make a ceramic mold side plate substrate with a specification of 860×30×25, and open a U-shaped groove on the working part of the side plate substrate, the groove width is 10mm, and the depth is 5mm.
[0038] Step 2: The selected components are C (3.5wt.%), Ni (5.5wt.%), Cr (28wt.%), Si (2.5wt.%), B (1.5wt.%), Fe (balance) Configure Fe-based alloy powder; then add Fe-based alloy wt.80% powder to TiC powder 20wt.% and mix ball milling.
[0039] Step 3: Fill the ball abrasive into the U-shaped groove, which is 1 / 2 of the groove depth.
[0040] Step 4: sintering in a vacuum furnace at 1130° C., and the holding time is 15 minutes.
[0041] Step 5: Repeat step 3 and step 4 twice, so that the hard coating powder melts and diffuses to fill the entire U-shaped groove, forming a hard coatin...
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Abstract
The invention discloses a hard coating composite side plate for a ceramic mold, which comprises a side plate substrate and a groove on one lateral surface of the side plate substrate. The groove is provided with a firm metallurgically combined hard coating inside; and the hard coating is prepared from iron-based alloy powder with a low melting point and tungsten carbide or titanium carbide powder. The invention also discloses a manufacturing method for the hard coating composite side plate for the ceramic mold. The manufacturing method realizes the firm combination of the hard coating and thesubstrate by ceramimetallurgical process technology to obtain seamless hard coating composite side plate for the ceramic mold. The process is simple; the cost is 30 to 50 percent lower than that of ahard alloy composite side plate; the service life reaches more than 1 million times; and the hard coating composite side plate is similar to the hard alloy composite side plate and has high cost performance, so the cost consumption for the mold in the production process of tiles is reduced.
Description
technical field [0001] The invention relates to a ceramic mold side plate, in particular to a seamless hard-coated composite side plate of a ceramic tile forming mold and a manufacturing method thereof. Background technique [0002] The ceramic mold is composed of upper and lower molds and surrounding side plates. When ceramic tiles are pressed and formed, the powder produces a large lateral pressure on the side plate, so when the dry blank is pushed out of the mold cavity, it will wear the working surface of the side plate, resulting in the scrapping of the side plate. In order to improve the life of the side plate, a groove is usually made in the working part of the side plate when the side plate 01 is manufactured, and the lining plate 02 of wear-resistant material is embedded in the groove, so as to make the composite side plate. Wear-resistant materials usually use alloy steel or hard alloy (tungsten carbide composite side plate structure, as attached figure 1 shown)....
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