Injection molding process of metal piece for radar

A technology of metal parts and radar, which is applied in the field of injection molding process of metal parts for radar, can solve the problems such as performance needs to be improved, and achieve the effect of guaranteeing performance, avoiding quality and avoiding impact

Inactive Publication Date: 2016-12-14
HEFEI JIARUILIN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the radar needs to be placed outdoors for use, all metal parts used on the radar must have strong performance, and should have strong impact resistance to prevent deformation, and should also have strong corrosion resistance. Currently The performance of this kind of metal parts used on radar needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] An injection molding process for metal parts for radar, the steps comprising:

[0020] (1) Material selection: select metal powder and binder and mix them. The metal powder is steel granulation powder containing 20% ​​aluminum powder. The ratio of metal powder and binder is 5:2. The mixture of powder and binder is dried at a temperature of 90°C for 40 minutes;

[0021] (2) Raw material melting: the raw material is melted in a furnace, the melting temperature is 800°C, and the melting time is 2 hours;

[0022] (3) Injection molding: The pressure in the pressure system is set to 20MPa, the molten raw material is injected into the clamping device under high pressure, the fixed mold in the clamping device is heated to 70°C, and the movable mold is heated to 50°C;

[0023] (4) Pressure holding: before the parts are formed and solidified, the pressure is held at 15MPa and the time is 3h;

[0024] (5) Cooling forming: Cool and shape the metal parts through the cooling system...

Embodiment 2

[0028] An injection molding process for metal parts for radar, the steps comprising:

[0029] (1) Material selection: select metal powder and binder and mix them. The metal powder is steel granulation powder containing 20% ​​aluminum powder. The ratio of metal powder and binder is 5:2. The mixture of powder and binder is dried at a temperature of 90°C for 40 minutes;

[0030] (2) Raw material melting: the raw material is melted in a furnace, the melting temperature is 850°C, and the melting time is 2 hours;

[0031] (3) Injection molding: the pressure in the pressure system is set to 35MPa, the molten raw material is injected into the clamping device under high pressure, the fixed mold in the clamping device is heated to 75°C, and the movable mold is heated to 55°C;

[0032] (4) Holding pressure: Carry out pressure holding before the parts are formed and solidified. The pressure of holding pressure is 15MPa, and the time is 5h;

[0033] (5) Cooling forming: Cool and shape th...

Embodiment 3

[0037] An injection molding process for metal parts for radar, the steps comprising:

[0038] (1) Material selection: select metal powder and binder and mix them. The metal powder is steel granulation powder containing 20% ​​aluminum powder. The ratio of metal powder and binder is 5:2. The mixture of powder and binder is dried at a temperature of 90°C for 40 minutes;

[0039] (2) Raw material melting: the raw material is melted in a furnace, the melting temperature is 900°C, and the melting time is 3 hours;

[0040] (3) Injection molding: the pressure in the pressure system is set to 50MPa, the molten raw material is injected into the clamping device under high pressure, the fixed mold in the clamping device is heated to 80°C, and the movable mold is heated to 60°C;

[0041] (4) Holding pressure: Carry out pressure holding before the parts are formed and solidified. The pressure of holding pressure is 15MPa, and the time is 6h;

[0042] (5) Cooling forming: Cool and shape th...

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Abstract

The invention discloses an injection molding process of a metal piece for a radar. The injection molding process of the metal piece for the radar is characterized in that metal powder used in a step (1) is rolled steel pelleting powder containing 20 percent of aluminum powder; the contained aluminum powder can form a compact oxidation film on the surface of the rolled steel pelleting powder after being melted, so that the anti-corrosive property of the metal powder is greatly improved; the matching ratio of the metal powder in the step (1) to an adhesive is 5 to 2, and is the excellent material matching, so that the fastness of the metal piece is ensured; a mixture of the metal powder in the step (1) and the adhesive is dried at the temperature of 90 DEG C for 40min, so that the impact of water vapor on the metal piece can be prevented due to drying; the temperature for cooling molding in a step (5) is 10 DEG C, the cooling time is 5h, the cooling and the sizing of the metal piece can be accelerated with the temperature, and meanwhile, the performance of the metal piece is ensured; and in a step (6), a manipulator system is used for demoulding. The process can prevent the metal piece from being impacted, so that the quality of the formed metal piece is prevented from being damaged.

Description

technical field [0001] The invention relates to the processing field of radars and parts thereof, in particular to an injection molding process of metal parts for radars. Background technique [0002] Radar is an electronic device that uses electromagnetic waves to detect objects. The radar emits electromagnetic waves to irradiate the target and receives its echo, thereby obtaining information such as the distance from the target to the electromagnetic wave emission point, the distance change rate (radial velocity), azimuth, and height. Since the radar needs to be placed outdoors for use, all metal parts used on the radar must have strong performance, and should have strong impact resistance to prevent deformation, and should also have strong corrosion resistance. Currently The performance of the metal parts used on the radar needs to be improved. Contents of the invention [0003] An injection molding process for metal parts for radar, the steps comprising: [0004] (1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/22B22F1/00
CPCB22F3/225B22F1/10
Inventor 罗文彬
Owner HEFEI JIARUILIN ELECTRONICS TECH
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