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Pressure gauge copper connector obtained by adopting hot pressing process and production method thereof

A hot-pressing process and production method technology, applied in the field of pressure gauge copper joints and their production, can solve the problems of poor material plasticity, high loss rate, and difficult processing.

Active Publication Date: 2012-10-31
杭州丰源铜业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, if the proportion of metal elements contained in the copper rod is improper, it is impossible to use the "red punching method" process to produce copper joints for pressure gauges.
In the production process, there will be bursting and breaking, poor material plasticity, poor product strength, difficult processing in subsequent processes, high loss rate, inability to sequentially form, stamping can not reach the top, only half or more than half of stamping

Method used

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  • Pressure gauge copper connector obtained by adopting hot pressing process and production method thereof
  • Pressure gauge copper connector obtained by adopting hot pressing process and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 1) Put the copper material (generally copper alloy of copper, lead, zinc and aluminum) into the electric melting furnace for heating and melting. The heating temperature in the electric melting furnace is set at 1100°C. After the copper material is melted, use a spectrometer to measure the metal content in the copper material. weight percentage;

[0030] 2) According to the results measured in step 1), zinc, lead, aluminum, copper, nickel, antimony, iron, tin and manganese metals are sequentially added to the above copper liquid, so that the weight of each metal in the copper liquid reaches the stated weight ratio , that is, 54% copper, 40% zinc, 0.3% aluminum, 0.4% nickel, 0.02% antimony, 3% lead, 0.8% iron, 0.7% tin and 0.02% manganese in the copper liquid, and the rest are unavoidable trace impurities;

[0031] 3) The copper liquid obtained in step 2) is drawn into a copper rod in a wire drawing machine with a diameter of 14 mm, and the obtained copper rod is then cu...

Embodiment 2

[0038] 1) Put the copper material (generally copper alloy of copper, lead, zinc and aluminum) into the electric melting furnace for heating and melting. The heating temperature in the electric melting furnace is set at 1200°C. After the copper material is melted, use a spectrometer to measure the metal content in the copper material. weight percentage;

[0039] 2) According to the results measured in step 1), zinc, lead, aluminum, copper, nickel, antimony, iron, tin and manganese metals are sequentially added to the above copper liquid, so that the weight of each metal in the copper liquid reaches the stated weight ratio , that is, 57% copper, 36.5% zinc, 0.5% aluminum, 0.3% nickel, 0.03% antimony, 3.5% lead, 0.5% iron, 0.8% tin and 0.03% manganese in the copper liquid, and the rest are unavoidable trace impurities;

[0040] 3) The copper liquid obtained in step 2) is drawn into a copper rod in a wire drawing machine with a diameter of 20mm, and the obtained copper rod is then...

Embodiment 3

[0046] 1) Put the copper material (generally copper alloy of copper, lead, zinc and aluminum) into the electric melting furnace for heating and melting. The heating temperature in the electric melting furnace is set at 1300°C. After the copper material is melted, use a spectrometer to measure the metal in the copper material weight percentage;

[0047] 2) According to the results measured in step 1), zinc, lead, aluminum, copper, nickel, antimony, iron, tin and manganese metals are sequentially added to the above copper liquid, so that the weight of each metal in the copper liquid reaches the stated weight ratio , that is, copper 56%, zinc 37%, aluminum 0.45%, nickel 0.35%, antimony 0.04%, lead 4%, iron 0.6%, tin 0.9% and manganese 0.05% in the copper liquid, and the rest are unavoidable trace impurities;

[0048] 3) The copper liquid obtained in step 2) is drawn into a copper rod in a wire drawing machine with a diameter of 24mm, and the obtained copper rod is then cut accord...

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Abstract

The invention discloses a pressure gauge copper connector obtained by adopting a hot pressing process and a production method thereof, and belongs to the technical field of copper connectors. The pressure gauge copper connector comprises copper, zinc, aluminum, nickel, antimony, lead, iron, tin, manganese and the like, and is prepared by a one-time punch forming method. The obtained pressure gauge copper connector has the tensile strength of more than 600MPa and the elongation of more than 10 percent, but a copper connector obtained through foundry treatment has the tensile strength of less than 300MPa and the elongation of less than or equal to 3 percent; moreover, the rejection rate of the copper connector is reduced to be less than 3 percent.

Description

technical field [0001] The invention belongs to the technical field of copper joints, and in particular relates to a pressure gauge copper joint obtained by a hot pressing process and a production method thereof. Background technique [0002] The traditional process of pressure gauge copper joints is to use sand casting. The surface of the product obtained by this method is rough, with many pores and sand holes, which often leads to easy leakage, low strength, poor tightness, low compressive performance and easy breakage of the pressure gauge joints. , High scrap rate. [0003] Change the traditional process of sand-turning casting and use the new process of "red punching" (hot pressing) to make the pressure gauge copper joint one-time stamping and forming. New formula copper rod copper must be used. If the original general formula copper is still used If the rod is processed and stamped, it cannot be stamped and formed. The structural components of copper rods must be re-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C9/04B21D22/06
Inventor 颜立荣邵定华黄友盈
Owner 杭州丰源铜业有限公司