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Aluminum alloy-clad cast iron liner compound material and preparation process thereof

A composite material and aluminum alloy technology, applied in the field of aluminum alloy coated cast iron cylinder liner composite material and its preparation, can solve the problems of difficult formation of effective combination, high cost, difficult production, etc., and achieve improved wettability and simple process , the effect of low cost method

Inactive Publication Date: 2013-08-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, aluminum alloy and cast iron composite materials have broad application prospects. Due to the huge difference in physical properties of aluminum alloy and cast iron, it is difficult to form an effective combination, which limits the application of this type of composite material.
However, continuous extrusion coating and other processes, due to high cost and difficult production, also restrict the production and application of aluminum alloy coated cast iron cylinder liner composite materials

Method used

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  • Aluminum alloy-clad cast iron liner compound material and preparation process thereof
  • Aluminum alloy-clad cast iron liner compound material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Raw materials include: 3-6mm thick HT250 cast iron cylinder liner, industrial ZL101 aluminum alloy and rare earth elements Ce, Pr.

[0018] Preparation process of aluminum alloy coated cast iron cylinder liner composite material:

[0019] (1) First prepare the used 3-6mm thick HT250 cast iron cylinder liner; first pickle the HT250 cast iron cylinder liner for surface degreasing and derusting treatment, remove the dirt and scale on the surface of the cast iron cylinder liner, and then place it in an anhydrous Alcohol to protect the surface from oxidation pollution;

[0020] (2) Weigh the ZL101 aluminum alloy according to the mass percentage of 99.5%, 0.2%, and 0.3%, and the rare earth element Ce and rare earth element Pr whose surface is smooth and smooth are placed in the crucible together with the rare earth Ce, Pr and ZL101 aluminum alloy, and placed Carry out heating and smelting in the medium frequency induction heating furnace, turn on the heating switch of the me...

Embodiment 2

[0025] Raw materials include: HT250 cast iron cylinder liner, industrial ZL101 aluminum alloy and rare earth elements Ce, Pr.

[0026] Preparation process of aluminum alloy coated cast iron cylinder liner composite material:

[0027] (1) First prepare the used 3-6mm thick HT250 cast iron cylinder liner; first pickle the HT250 cast iron cylinder liner for surface degreasing and derusting treatment, remove the dirt and scale on the surface of the cast iron cylinder liner, and then place it in an anhydrous Alcohol to protect the surface from oxidation pollution;

[0028] (2) Weigh ZL101 aluminum alloy according to mass percentage 99.4%, 0.5%, 0.1%, rare earth element Ce and rare earth element Pr with smooth and smooth surface, place rare earth Ce, Pr and ZL101 aluminum alloy together in a crucible, place Heating and smelting in the intermediate frequency induction heating furnace; turn on the heating switch of the intermediate frequency induction heating furnace, adjust the powe...

Embodiment 3

[0033] Preparation process of aluminum alloy coated cast iron cylinder liner composite material:

[0034] (1) First prepare the used 3-6mm thick HT250 cast iron cylinder liner; first pickle the HT250 cast iron cylinder liner for surface degreasing and derusting treatment, remove the dirt and scale on the surface of the cast iron cylinder liner, and then place it in an anhydrous Alcohol to protect the surface from oxidation pollution;

[0035] (2) Weigh ZL101 aluminum alloy according to mass percentage 99.5%, 0.3%, 0.2%, rare earth element Ce and rare earth element Pr with smooth and smooth surface, place rare earth Ce, Pr and ZL101 aluminum alloy together in a crucible, place Heating and smelting in the intermediate frequency induction heating furnace; turn on the heating switch of the intermediate frequency induction heating furnace, adjust the power to 12KW, and heat in the temperature range of 900 ° C for 5 minutes;

[0036] (3) Adjust the power of the heating furnace to 0...

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Abstract

The invention relates to an aluminum alloy-clad cast iron liner compound material and a preparation process thereof. The preparation process comprises the following steps of: performing hot dip coating on an HT250 cast iron liner in meltwater of rare earth Ce, rare earth Pr and ZL101 aluminum alloy at the temperature of between 700 DEG C and 800 DEG for 5 minutes to 10 minutes; taking the HT250 cast iron liner out, fixing the HT250 cast iron liner in a mold cavity of a metal casting mold; and melting the meltwater of the ZL101 aluminum alloy, the rare earth element Ce, and the rare earth element Pr in an intermediate-frequency induction heating furnace for casting to complete the whole casting process. According to the invention, the metallurgical bonding of two metals such as the ZL101 aluminum alloy and the HT250 cast iron is realized by a casting method and a reasonable surface pretreatment process by adding rare earth elements, reducing the surface tension of the two metals and improving the wettability, more than 98 percent of metallurgical bonding surfaces exist, the method has low cost and is simple in process.

Description

technical field [0001] The invention relates to an aluminum alloy coated cast iron cylinder liner composite material and a preparation process thereof, belonging to the technical field of metal composite material preparation. Background technique [0002] As a very potential material that has appeared in the past ten years, bimetallic composite materials have attracted widespread attention. In recent years, many experts and scholars at home and abroad have begun related research. For example, bimetallic composite crushing hammers have been used in mining machinery. Application [LI Pengzhi, XING Shuming. Progress in research onbimetal compound casting technology for crusher head [J]. Metal Mine, 2008 (5) J 96-99], MEHMET LEVENT C et al studied the bimetal shell casting of alloy steel and stainless steel [MEHMET LEVENT C, KUMRUOG L, et al. An investigation into stainless-steel / structural-alloy-steel bimetal produced by shell mold casting [J]. Materials and Design, 2009, 30J...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C2/12C23C2/34B22D19/08
Inventor 边秀房郭凯李文钊
Owner SHANDONG UNIV
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