JPS5947063A - Welding method of copper alloy and cast iron - Google Patents

Abstract

PURPOSE:To weld securely cast iron and a copper alloy, by interposing a plating layer of an alloy contg. P or B on the welding surfaces prior to welding of both metals. CONSTITUTION:A Cu alloy or cast iron plated thereon with a phosphorous contg. alloy such as Ni-P or Cu-P or a boron contg. alloy such as Ni-B or Cu-B is disposed in the casting cavity of a casting mold (sand mold) 1, and a metal melt 3 of cast iron or a copper alloy is cast therein. Since the plating layer of the above-mentioned phosphorous contg. alloy or boron contg. alloy is interposed on the joint surfaces of the cast iron and the copper alloy, the cast iron and the copper alloy are securely welded.

Description

[Detailed Description of the Invention] There is a relatively high-grade Sushiri 111111 Uke. These bearings either consisted of a copper alloy welded to a low carbon steel base (I2) or had defects that made them susceptible to deformation when subjected to excessive stress. Therefore, it is desired to create a copper alloy bearing with a more deformable base metal.

The present invention provides #! ! +i is considered.

In other words, the displacement with little deformation has a high elastic limit +jl"l
Is there fJ iron? FIC current technology is copper alloy (HS)ζ
11. It is a technique like this, and ↓ (2 items are not yet commercially available).

The present invention uses 4-Ni with deoxidation 1''1: in copper alloy or cast iron.
-P, Cu-P phosphorus alloy or N1-B,
Plating a boron-containing alloy such as CLI-B,
, 'lf type, the front part is filled with molten cast iron, the rear part is charged with molten cast iron.
Regarding one, is it possible to cast copper alloy and cast iron by casting molten copper alloy and welding the two? This is about how to wear FF.

Next, we will explain with drawings 〇 In Figure 1, 1 is TQ type (e.g. C02 mold), 2 is plated with Yorif alloy or boron-containing alloy (see III; approx. 201.)
Copper alloy (e.g. 25% Pl) Cu, 50/δ
5n-25'-.

PI) -Co), 3 H'i(f!, iS (e.g. Fe12)) is poured into a mold. This is a smaller version of the state in which molten metal is being poured.

In Figure 2, 1 is a mold (e.g. CO2 mold), 2 is cast iron (e.g. Fe12) to be plated with triphosphorous alloy or boron-containing alloy (thickness: approx. 20%), and 3 is copper alloy (rule: 25%). Pl]
-Ct+, 5'y: (Sn -25'!b C
The molten metal of u) is shown.

1! This figure shows a state in which a gun V for plating a deoxidizing agent ≦7 is charged into a mold, and an AllI alloy is eluted into the mold.

Next, examples will be described.

Example 1 25o/6P b-C11 alloy with outer diameter 106mm, inner diameter 1100z, height 100mm and 5% Sn
-25%Pb-Cu alloy with 10010P Ni,
IO%P-Co, 10%PLusl)%
B-Nj, 5%B--Ni, 5'! '0B-C(+
, 5% B-Cu alloy is approximately 2 Or-me1=l-
L, charged into a mold as shown in Fig. 1, and the cavity (thickness;
Pour the molten metal Z(fej, (FC2a) into lQ+u+).

The adhesion was determined by cutting the center of the main body using L1I1R L and dyeing 7J using the one-bird method. The results are shown in the table below.

As mentioned above, phosphorus is added to the steel alloy. r? Boron-gold alloy plating is applied, and when molten iron is injected into it, rF easily becomes l+
It was profitable to be able to join people.

Example 2 Outer diameter b10"1 inner diameter 13Qmm, height I (lon+m 1/f iron ('Fc23) I O%P-N i, I
O% P-Co, same% P-Cu, 506 H-N
i.

A 5% BCo, 5% 13-Cu alloy was made into a barley of about 20 mm and charged into a mold as shown in Fig. 2, and the cavity (thickness: 1
5mm) with 25% Pb-Cu alloy and 59i+Sn
A molten metal of -25% PIJ-CLI alloy was injected.

The dense jTf property was determined by cutting the center of the specimen and using dye penetrant detection. The results are shown in the table below.

As described above, it has been found that by plating cast iron with corrugated phosphorus and a porous alloy, and then injecting molten M alloy into the cast iron, the two can be joined.

3. Figure 1, which is a simplified version of the drawing, is a cross-sectional view showing that the copper alloy to be plated with JR phosphorus or boron is charged into the mold, and cast iron elution is injected into it. Type, 2 is a mixture, 3 shows no cast iron elution.

Figure 2 of the drawing shows a mold filled with cast iron plated with phosphorous or boron-containing agglomerates, and 11 people bathed in a copper alloy bath. ,3
indicates T+, i1 alloy molten metal

Claims (1)

[Claims] 5111 alloy or r(f iron Ni-P, Cu-P nato' (J) @ rif alloy, Ni-B, Cu-B, and other boron-containing alloys are prepared and loaded into molds respectively. Enter,
9. Cast molten cast iron for the former, and molten copper alloy for the latter, and weld 11'+J and n.
A welding method for copper alloy and FQ iron.