Method for producing a cast component with an insert

Patent metadata

Field	Value
Publication number	US-10352268-B2
Application number	US-201715588029-A
Country	US
Kind code	B2
Filing date	May 5, 2017
Priority date	Oct 2, 2013
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A cylinder liner for an internal combustion engine may include an aluminum alloy material including a magnesium content of at least 0.3% by weight, a liner body having a circumferential face, and an adapter layer of silicon oxide disposed on the circumferential face. The adapter layer may include at least one of a potassium oxide content and a sodium oxide content of greater than or equal to 0% by weight.

First claim

The invention claimed is:

1. A cylinder liner for an internal combustion engine, the cylinder liner comprising:
an aluminum alloy material including a magnesium content of at least 0.3% by weight;
a liner body having a circumferential face; and
an adapter layer of a silicon oxide material disposed on the circumferential face between the liner body and the aluminum alloy material, wherein the silicon oxide material of the adapter layer includes at least one of a potassium oxide content and a sodium oxide content of greater than 0% by weight.

2. The cylinder liner according to claim 1 , wherein the magnesium content of the aluminum alloy material is at least 0.5% by weight.

3. The cylinder liner according to claim 1 , wherein the adapter layer has a layer thickness of 5 μm to 10 μm.

4. The cylinder liner according to claim 1 , wherein the adapter layer is encased by the aluminum alloy material.

5. The cylinder liner according to claim 4 , wherein a transition region between the adapter layer and the aluminum alloy material has a composition including magnesium oxide and silicon.

6. The cylinder liner according to claim 1 , wherein the silicon oxide material of the adapter layer includes a polymerized inorganic silicate.

7. The cylinder liner according to claim 1 , wherein the silicon oxide material of the adapter layer is predominantly silicon oxide having a proportion of the potassium oxide content.

8. The cylinder liner according to claim 1 , wherein the silicon oxide material of the adapter layer is predominantly silicon oxide having a proportion of the sodium oxide content.

9. The cylinder liner according to claim 1 , wherein the silicon oxide material of the adapter layer is dehydrated water glass.

10. A cylinder block for an internal combustion engine, the cylinder block comprising:
an aluminum alloy component including a magnesium content of at least 0.3% by weight;
a cylinder liner including a liner body having a circumferential face;
an adapter layer of a silicon oxide material disposed on the circumferential face of the liner body, the silicon oxide material of the adapter layer including at least one of a potassium oxide content and a sodium oxide content of greater than 0% by weight; and
wherein the aluminum alloy component encases the adapter layer.

11. The cylinder block according to claim 10 , wherein the magnesium content of the aluminum alloy component is at least 0.5% by weight.

12. The cylinder block according to claim 10 , wherein the adapter layer has a layer thickness of 5 μm to 10 μm.

13. The cylinder block according to claim 11 , wherein the cylinder liner and the aluminum alloy component define a positively locking connection at a transition region between the adapter layer and the aluminum alloy component.

14. The cylinder block according to claim 13 , wherein the transition region has a composition including magnesium oxide and silicon.

15. The cylinder block according to claim 11 , wherein the silicon oxide material of the adapter layer has a proportion of the sodium oxide content.

16. The cylinder block according to claim 11 , wherein the silicon oxide material of the adapter layer has a proportion of the potassium oxide content.

17. A cylinder liner of a cylinder block for an internal combustion engine, the cylinder liner comprising:
an aluminum alloy component including a magnesium content of at least 0.5% by weight;
a liner body having a circumferential surface;
an adapter layer of a silicon oxide material disposed on the circumferential surface, the silicon oxide material of the adapter layer including at least one of a potassium oxide content and a sodium oxide content; and
wherein the aluminum alloy component encases the adapter layer, and wherein the adapter layer further includes a content of magnesium oxide and silicon to facilitate a positively locking connection between the liner body and the aluminum alloy component.

18. The cylinder liner according to claim 17 , wherein the adapter layer has a layer thickness of 5 μm to 10 μm.

19. The cylinder liner according to claim 17 , wherein the content of magnesium oxide and silicon is provided in the adapter layer via a reaction of the silicon oxide material with the magnesium content in a transition region between the adapter layer and the aluminum alloy component.

Assignees

• Mahle Int Gmbh

Inventors

• Bischofberger Ulrich
• Gaiselmann Stefan

Classifications

• C22C21/06

  with magnesium as the next major constituent · CPC title

• B22C3/00

  Selection of compositions for coating the surfaces of moulds, cores, or patterns · CPC title

• B22D19/0009 Primary

  Cylinders, pistons · CPC title

• B22D15/02

  of cylinders, pistons, bearing shells or like thin-walled objects · CPC title

• F02F1/004 Primary

  Cylinder liners (F02F1/08, F02F1/16 take precedence) · CPC title