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Composite mould with internal mini crack on liner for vibration forming building block/ ground brick

A technology of vibration molding and composite molds, which is applied in the direction of ceramic molding machines and manufacturing tools, can solve the problems of wear, high mold cost, deformation of mold lining, etc., and achieve the effect of improving product quality, increasing mold life, and reducing mold cost

Inactive Publication Date: 2009-10-07
霍玉杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] But by the mold of the existing automatic vibration forming block or floor tile made by the above method, the metal material of the mold cavity liner adopts low carbon content, the surface of the mold cavity liner made is smooth, without cracks, and there is stress inside, and the mold is in use. At the same time, due to high-speed vibration, the stress is released, so the mold lining is deformed and worn. The service life of the existing domestic block and floor tile molds is generally less than 80,000 times, and only some imported molds can reach 100,000 times. Therefore, Cause the mold to use the manufacturer's mold cost to be higher

Method used

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  • Composite mould with internal mini crack on liner for vibration forming building block/ ground brick
  • Composite mould with internal mini crack on liner for vibration forming building block/ ground brick
  • Composite mould with internal mini crack on liner for vibration forming building block/ ground brick

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Experimental program
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Effect test

Embodiment 1

[0052] Embodiment 1: the manufacture of a composite mold with microcracks in the inner cavity of the vibration-formed floor tiles of 300 mm × 300 mm × 60 mm

[0053] 1. Manufacture of composite liner 10-1:

[0054] 1. By milling method will image 3 The low-carbon steel bottom plate 1 of the lining plate 10-1 made of metal materials is processed to 322mm×71mm×10mm;

[0055] 2. Use tungsten argon arc welding 500 ampere DC surfacing welding machine, the working current is determined to be 280 amperes, and the HS101 surfacing welding wire with a diameter of 6 mm and a C content of 2.5%-3.3% and a Cr content of 25%-31% is selected. , the inner lining layer 2 formed by overlaying CrC alloy welding layer on the inner side of the bottom plate 1, the size is 280mm×50mm, the thickness of the weld bead is ≥5mm; the hardness HRC of the obtained metal inner lining layer is 50-70, and the surface of the metal inner lining layer Form micro-cracks 5 in the up-down direction, left-right dir...

Embodiment 2

[0067] Embodiment 2: the manufacture of a composite mold with microcracks in the inner cavity of the vibration-formed floor tile of 100mm × 200mm × 60mm

[0068] 1. Manufacture of composite liner 10-1:

[0069] 1. By planing the method will figure 2 The low-carbon steel bottom plate 1 of the lining plate 10-1 made of metal materials is processed to 122mm×71mm×10mm;

[0070] 2. A tungsten argon arc welding 500 ampere DC surfacing welding machine is used, the working current is determined to be 280 amperes, and a 6 mm diameter HS103 surfacing welding wire with a C content of 3.0%-4.0% and a Cr content of 25%-32% is selected. The inner lining layer 2 formed by surfacing welding CrC alloy welding layer on the inner side of the bottom plate 1, the thickness of the weld bead is ≥ 5mm; Micro-cracks 5 in irregular directions. The width of micro-cracks 5 is in the range of 0.1 mm to 0.5 mm. In the lining, the number of micro-cracks is at least one per square centimeter.

[0071] 3...

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Abstract

The invention discloses a composite mold with microcracks in the inner cavity used for vibration forming blocks or floor tiles, which comprises a cavity constituting the mold. The composite liner is composed of a metal inner liner, and the surface of the metal inner liner has a plurality of obvious microcracks. The metal composite inner cavity with micro-cracks improves the quality of products produced through the mold. Because the inner cavity has microcracks, the internal stress of the composite inner cavity has all disappeared before use, and the mold adopts a split structure. Since the heat treatment process is canceled for the lining metal of the mold cavity, the accuracy depends entirely on the machining accuracy. The size error can be controlled within ±0.2mm, which is far beyond the international standard of block industry. The life of the composite inner cavity exceeds 200,000 times, which greatly improves the life of the mold and can greatly reduce the cost of the mold in the block factory.

Description

technical field [0001] The invention relates to a building mold and a manufacturing method thereof, in particular to a composite mold with microcracks in the inner cavity of a building block or floor tile formed by vibration. Background technique [0002] Among the new building materials, the emergence of automatic vibration forming blocks and floor tiles has a history of about 70 years. The mold cavity used in production is composed of metal materials. The main chemical composition of metal materials is C≤1.8%, Cr≤ 15% and so on. In order to improve the wear resistance of the metal material in the mold cavity, that is, to increase the life of the mold, the metal material in the cavity is generally hardened, and the following methods are mainly used: 1. Overall heat treatment: 1. Vacuum heat treatment; 2. Salt bath quenching; 2. Surface heat treatment: 1. Silicon carbide; 2. Nitriding; 3. Carburizing; 4. Carbonitriding; 5. Boronizing; 6. High frequency heat treatment. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28B7/34B28B1/08
Inventor 霍玉杰
Owner 霍玉杰
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