Composite steel plate for plastic mold and manufacturing method of composite steel plate

A technology of plastic mold and composite steel plate, applied in the field of composite steel plate and its manufacturing, can solve the problems affecting the uniformity of product structure and mechanical properties, increase of production cost, low production efficiency, etc., achieve excellent processability, improve quality, and blank thickness increased effect

Active Publication Date: 2018-06-05
BAOSTEEL ZHANJIANG IRON & STEEL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for a long time, the steel for molds in the prior art has adopted a medium-carbon alloy composition design system. The content of precious metals such as Cr, Ni, and Mo in the steel of this system is relatively high, and it needs to be quenched and tempered to obtain the mold when making the mold. Desired properties and hardness requirements
[0005] In recent years, a series of non-quenched and tempered plastic mold steels have been gradually developed, but the current non-quenched a

Method used

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  • Composite steel plate for plastic mold and manufacturing method of composite steel plate
  • Composite steel plate for plastic mold and manufacturing method of composite steel plate
  • Composite steel plate for plastic mold and manufacturing method of composite steel plate

Examples

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Embodiment 1-10

[0056] Table 1 lists the mass percentages of chemical elements in the composite steel plates for plastic molds of Examples 1-10.

[0057] Table 1. (wt%, the balance is Fe and other unavoidable impurities except P, S, N, O and H)

[0058]

[0059] The manufacturing method of the composite steel plate for plastic mold described in the embodiment 1-10 adopts the following steps to make (concrete process parameters in each embodiment are referring to Table 2):

[0060] (1) Smelting and casting to obtain cast slabs, and controlling the casting speed of continuous casting to ≤1.0m / min.

[0061] (2) Pretreatment is carried out on the surface of the slab by mechanical method to remove the oxide layer on its surface;

[0062] (3) Assembling the above-mentioned cast slabs of two or more layers, welding and sealing around the bonding surfaces of each layer, and then vacuuming;

[0063] (4) Heating, wherein the heating temperature is 1000-1250° C., and the temperature is kept for 1-3...

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Abstract

The invention discloses a composite steel plate for a plastic mold. The composite steel plate is formed by two or more homogeneous billet layers through cladding rolling. The omposite steel plate forthe plastic mold comprises, by mass, 0.10-0.30% of C, 0.10-0.80% of Si, 1.00-2.00% of Mn, 1.00-2.00% of Cr, 0.01-0.50% of Mo, 0.01-1.00% of Ni, 0.01-0.10% of V, 0.01-0.10% of Ti, 0.010-0.070% of Al and the balance Fe and other inevitable impurities. Correspondingly, the invention further discloses a manufacturing method of the composite steel plate for the plastic mold. The composite steel plate for the plastic mold is uniform in thickness and section structure.

Description

technical field [0001] The invention relates to a composite plate and a manufacturing method thereof, in particular to a composite steel plate and a manufacturing method thereof. Background technique [0002] With the development of industrial production technology and the continuous emergence of new materials, plastic products have become an important industrial material and are widely used in various sectors of the national economy. From spacecraft to ships, from building materials to agricultural production, from household appliances to children's toys, plastic products are inseparable. For this reason, the output value of plastic molds in many industrially developed countries has ranked first in the mold manufacturing industry. [0003] Steel for plastic molds is divided into major categories, including steel for mold base mold manufacturing and steel for cavity mold manufacturing. Among them, the steel plate thickness of the cavity mold steel is usually 15-500mm. In o...

Claims

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Application Information

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IPC IPC(8): C22C38/58C22C38/04C22C38/50C22C38/44C22C38/46C22C38/02C22C38/06C21D8/02
CPCC21D8/0226C21D2211/002C22C38/002C22C38/02C22C38/04C22C38/06C22C38/44C22C38/46C22C38/50C22C38/58
Inventor 华蔚袁向前鲁岩郝英敏李红斌施青沈燕
Owner BAOSTEEL ZHANJIANG IRON & STEEL CO LTD
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