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High-strength engine shell and fabrication method thereof

A technology of engine casing and manufacturing method, which is applied in the direction of engine components, machines/engines, casings, etc., can solve the problems of affecting the car's driving performance, high quality, and insufficient strength of the engine casing, and achieve friction-resistant quality, high strength, and The effect of improving manufacturing efficiency

Pending Publication Date: 2020-04-17
NINGBO JIALILAI MACHINERY MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the strength of the engine casing forged by this forging process is insufficient and the mass is large, which will affect the driving performance of the car and needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A high-strength engine housing, including the following components in mass percentage:

[0026] Si: 10.2%; Cu: 1.63%; Fe: 0.8%; Zn: 0.68%; Mn: 0.21%; Mg: 0.17%; Ni: 0.04%; Ti: 0.03%; Modified silica with a specific surface area SBET of 326㎡ / g and a particle size of less than 30nm: 0.15%; the balance is Al.

[0027] The manufacturing method of modified white carbon black comprises the following steps: adding white carbon black raw material into a sealed stirring device, when the control pressure is 152 cm Hg, the temperature is 360 °C and the stirring speed is 200 r / min, feed into the stirring device The polytetrafluoroethylene with the white carbon black raw material in a mass ratio of 1:20 was stirred for 60 minutes and then naturally cooled to room temperature.

[0028] A method for manufacturing a high-strength engine casing, comprising the steps of:

[0029] Step 1, will by mass percentage be 10.2% Si, 1.63% Cu, 0.8% Fe, 0.68% Zn, 0.21% Mn, 0.17% Mg, 0.04% Ni, 0.0...

Embodiment 2

[0036] A high-strength engine housing, including the following components in mass percentage:

[0037] Si: 10.3%; Cu: 1.72%; Fe: 0.83%; Zn: 0.71%; Mn: 0.23%; Mg: 0.19%; Ni: 0.05%; Ti: 0.04%; : 0.018%; modified white carbon black with a specific surface area SBET of 326㎡ / g and a particle size of less than 30nm: 0.18%; the balance is Al.

[0038] The manufacturing method of modified white carbon black comprises the following steps: adding white carbon black raw material into a sealed stirring device, when the control pressure is 152 cm Hg, the temperature is 360 °C and the stirring speed is 200 r / min, feed into the stirring device The polytetrafluoroethylene with the white carbon black raw material in a mass ratio of 1:20 was stirred for 60 minutes and then naturally cooled to room temperature.

[0039] A method for manufacturing a high-strength engine casing, comprising the steps of:

[0040] Step 1, will by mass percentage be 10.3% Si, 1.72% Cu, 0.83% Fe, 0.71% Zn, 0.23% Mn,...

Embodiment 3

[0047] A high-strength engine housing, including the following components in mass percentage:

[0048]Si: 10.49%; Cu: 1.81%; Fe: 0.85%; Zn: 0.74%; Mn: 0.26%; Mg: 0.22%; Ni: 0.05%; Ti: 0.04%; Modified silica with a specific surface area SBET of 328㎡ / g and a particle size of less than 30nm: 0.20%; the balance is Al.

[0049] The manufacturing method of modified white carbon black comprises the following steps: adding white carbon black raw material into a sealed stirring device, when the control pressure is 152 cm Hg, the temperature is 360 °C and the stirring speed is 200 r / min, feed into the stirring device The polytetrafluoroethylene with the white carbon black raw material in a mass ratio of 1:20 was stirred for 60 minutes and then naturally cooled to room temperature.

[0050] A method for manufacturing a high-strength engine casing, comprising the steps of:

[0051] Step 1, will by mass percentage be 10.49% Si, 1.81% Cu, 0.85% Fe, 0.74% Zn, 0.26% Mn, 0.22% Mg, 0.05% Ni, ...

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Abstract

The invention discloses a high-strength engine shell and a fabrication method thereof and relates to the technical field of engine fabrication. The high-strength engine shell is characterized by comprising the following ingredients of, in percentage by mass, 10.2-10.6% of Si, 1.63-1.98% of Cu, 0.8-0.9% of Fe, 0.68-0.79% of Zn, 0.21-0.29% of Mn, 0.17-0.25% of Mg, 0.04-0.06% of Ni, 0.03-0.05% of Ti,0.03-0.05% of Pb, 0.015-0.024% of Sn, 0.15-0.23% of white carbon black and the balance Al. The high-strength engine shell and the fabrication method thereof have the effect of improving the engine shell fabrication efficiency by adopting adaptive proportions on all the ingredients and adopting the corresponding fabrication method under the situation of controlling the fabrication energy consumption, furthermore, the obtained engine shell has the characteristics of high strength, friction resistance and light weight, and the high-strength engine shell is suitable for automotive engines of highstrength requirements and high performance requirements.

Description

technical field [0001] The invention relates to the technical field of engine manufacturing, and more specifically relates to a high-strength engine casing and a manufacturing method thereof. Background technique [0002] An engine is a machine that converts other forms of energy into mechanical energy. In order to effectively reduce the weight of the vehicle, aluminum alloys are gradually being used to replace gray cast iron for the casting of engine casings. [0003] The Chinese patent with the publication number CN107598065A discloses a forging process of an engine casing, which includes the following steps: S10: put the aluminum alloy raw material into a melting furnace for melting; S20: cast the melted aluminum alloy raw material into an ingot to form Ingot; S30: Heating the above ingot to 1200°C-1570°C, chamfering and keeping it warm, and heating the forging mold to 1000°C-1200°C for more than 3 hours; S40: Put the cylindrical ingot into the forging In the mold, the ...

Claims

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Application Information

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IPC IPC(8): C22C21/02C22C1/10C22C32/00C22F1/043F02F7/00
CPCC22C1/1036C22C21/02C22C32/0036C22F1/002C22F1/043F02F7/0085F02F7/0095F02F2200/06
Inventor 金华君章晓海
Owner NINGBO JIALILAI MACHINERY MFR
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