Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation process of dual-metal engine cylinder composite material

An engine cylinder and composite material technology, which is applied in the field of preparation of bimetallic engine cylinder composite materials, can solve the problems of high price, huge difference in physical properties, great difficulty, etc., and achieves simple and practical preparation process, improved joint surface performance, and reduced surface area. The effect of tension

Inactive Publication Date: 2012-11-14
烟台路通精密科技股份有限公司 +1
View PDF5 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flux used in the traditional hot-dip plating process mainly contains ZnCl 2 and containing K 2 ZrF 6 A water-soluble flux, here ZnCl 2 It is easy to generate gas, so that castings are prone to defects such as pores; while using K 2 ZrF 6 water-soluble flux, since K 2 ZrF 6 Expensive, which increases production costs
[0003] Aluminum alloy and cast iron engine cylinder composite materials have broad application prospects. Due to the huge difference in physical properties between aluminum alloy and cast iron, it is difficult to form an effective bonding interface, which limits the performance and use of this type of composite material.
However, continuous extrusion coating and other production processes, due to high cost and difficulty, also restrict the production and application of aluminum alloy and cast iron composite materials in engine cylinders

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation process of dual-metal engine cylinder composite material
  • Preparation process of dual-metal engine cylinder composite material
  • Preparation process of dual-metal engine cylinder composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Raw materials include: HT250 cast iron cylinder liner, industrial ZL101A aluminum alloy and self-prepared surfactant (mainly composed of potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, calcium fluoride CaF 2 , calcium chloride CaCl 2 ).

[0023] (1) First prepare the HT250 cast iron cylinder liner used, firstly pickle the HT250 cast iron cylinder liner for surface degreasing and derusting treatment, and remove the dirt and scale on the surface of the cast iron cylinder liner;

[0024] (2) Prepare surfactants, weigh potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, and calcium fluoride CaF according to mass percentages of 39%, 20%, 18%, 15%, and 8%. 2 and calcium chloride CaCl 2 . KF, KCl, NaCl, CaF 2 , CaCl 2 Prepare an active agent with pure water at a concentration of 100g / L, then immerse the HT250 cast iron cylinder liner that has been degreased and decontaminated on the surface into the prepared surfactant solution at a t...

Embodiment 2

[0030] Raw materials include: HT250 cast iron cylinder liner, industrial ZL101A aluminum alloy and self-prepared surfactant (mainly composed of potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, calcium fluoride CaF 2 , calcium chloride CaCl 2 ).

[0031] (1) First prepare the HT250 cast iron cylinder liner used, firstly pickle the HT250 cast iron cylinder liner for surface degreasing and derusting treatment, and remove the dirt and scale on the surface of the cast iron cylinder liner;

[0032] (2) Prepare surfactants, weigh potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, calcium fluoride CaF according to the mass percentage of 46%, 16%, 15%, 13%, and 10% 2 and calcium chloride CaCl 2 . Make KF, KCl, NaCl and purified water into the active agent at a concentration of 200gL, then immerse the degreased and decontaminated HT250 cast iron cylinder liner into the prepared surfactant solution at a temperature of 110°C, take it out after 25 m...

Embodiment 3

[0038] Raw materials include: HT250 cast iron cylinder liner, industrial ZL101A aluminum alloy and self-prepared surfactant (mainly composed of potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, calcium fluoride CaF 2 , calcium chloride CaCl 2 ).

[0039] (1) First prepare the HT250 cast iron cylinder liner used, firstly pickle the HT250 cast iron cylinder liner for surface degreasing and derusting treatment, and remove the dirt and scale on the surface of the cast iron cylinder liner;

[0040] (2) Prepare surfactants, weigh potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, and calcium fluoride CaF according to mass percentages of 42%, 26%, 21%, 6%, and 5%. 2 and calcium chloride CaCl 2 . Prepare KF, KCl, NaCl and purified water as the active agent at a concentration of 150g / L, then immerse the degreased and decontaminated HT250 cast iron cylinder liner into the prepared surfactant solution at a temperature of 110°C for 25 minutes Take it...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation process of a dual-metal engine cylinder composite material, the preparation process comprises the following steps of: firstly, acid-washing a HT250 cast iron cylinder liner and carrying out surface degreasing and derusting treatment on the HT250 cast iron cylinder liner; then dipping the HT250 cast iron cylinder liner into a prepared proportional saline solution, so that the surface of the HT250 cast iron cylinder liner is soaked in the saline solution; then drying the HT250 cast iron cylinder liner, and putting the HT250 cast iron cylinder liner in a ZL101A aluminum alloy melt body for hot immersion plating; fixing the immersion-plated HT250 cast iron cylinder liner in a mold cavity of a metal mold casting mold, casting, melting and cooling a ZL101A aluminum alloy, wherein concentration of the saline solution is 100-200g / L, the saline solution is prepared by mixing water together with potassium fluoride KF, potassium chloride KCl, sodium chloride NaCl, calcium fluoride CaF2, and calcium chloride CaC12 according to a mass ratio of 39-46:16-26:15-21:6-15:5-10. According to the preparation process, the engine cylinder composite material is obtained through treating the ZL101A aluminum alloy and HT250 cast iron by a self-prepared surfactant and implementing a dual-metal composite casting process on the ZL101A aluminum alloy and the HT250 cast iron, wherein two metal materials of the ZL101A aluminum alloy and the HT250 cast iron are not mixed and kept with original physical properties; but the ZL101A aluminum alloy and the HT250 cast iron obtain an extremely perfect combination interface, so that casting metallurgical bonding of 99.5 percent and above is achieved.

Description

technical field [0001] The invention relates to a preparation process of a bimetal engine cylinder composite material, belonging to the technical field of metal material preparation. Background technique [0002] As a very potential material that has emerged in the past ten years, bimetallic composites have attracted widespread attention. Many experts and scholars at home and abroad have focused on related research, such as: the surface aluminum-silicon alloy crystallization of gray iron or ductile iron Research on the formation of reaction layer[S.Pietrowski,T.Szymczak.Theoretical basis of Al-Si coat crystallization on gray and nodular cast iron and making the layered items using it[J].Journal of achievements inmaterials and manufacturing engineering,2011(49) 421-439]; H.Springer, A.Kostka and others studied low-carbon steel and industrial pure aluminum composite materials, and used dual-alloy composite casting technology to prepare composite materials from low-carbon steel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B22D19/16
Inventor 陈国诗张硕刘洋郭凯边秀房
Owner 烟台路通精密科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products