Large alloy steel casting
A technology of alloy steel and castings, which is applied in the field of large alloy steel castings, can solve the problems of casting surface cracks, low casting yield, large wall thickness difference, etc., and achieve good mechanical properties, good surface quality, and high yield.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0015] Example 1:
[0016] A large alloy steel casting is a large machine tool casting. The large machine tool casting is made of high-strength stainless cast steel through low pressure casting, and the low pressure casting process includes the following steps:
[0017] a. Smelting the stainless steel casting solution: put the high-strength stainless steel casting into a high-temperature melting furnace, and smelting it into molten steel at a temperature of 950°C. The components of the high-strength stainless steel casting and the quality of each component The ratio is: carbon 0.02%, silicon 1%, manganese 0.8%, phosphorus 0.05%, sulfur 0.02%, chromium 18%, nickel 6%, titanium 0.06%, iron 74.05%;
[0018] b. Preheating the casting mold: Preheating the resin sand casting mold to 150°C, keeping the temperature for 2 hours, and placing an external cold iron on the outer wall of the resin sand casting mold can accelerate the solidification of the intersection of the casting wall th...
Example Embodiment
[0021] Embodiment 2:
[0022] A large alloy steel casting is a large machine tool casting. The large machine tool casting is made of high-strength stainless cast steel through low pressure casting, and the low pressure casting process includes the following steps:
[0023] a. Smelting the stainless steel casting solution: put the high-strength stainless steel casting into a high-temperature melting furnace, and smelting it into molten steel at a temperature of 980°C. The ratio is: carbon 0.04%, silicon 1.5%, manganese 1%, phosphorus 0.02%, sulfur 0.01%, chromium 15%, nickel 3%, titanium 0.03%, iron 79.4%;
[0024] b. Preheating the casting mold: Preheating the resin sand casting mold to 180°C, keeping the temperature for 2.5 hours, and placing an external cold iron on the outer wall of the resin sand casting mold can accelerate the solidification of the intersection of the casting wall thickness and avoid the occurrence of Cracks, improve local metallographic structure and me...
Example Embodiment
[0027] Embodiment three:
[0028] A large alloy steel casting is a large machine tool casting. The large machine tool casting is made of high-strength stainless cast steel through low pressure casting, and the low pressure casting process includes the following steps:
[0029] a. Melting the stainless steel casting solution: put the high-strength stainless steel casting into a high-temperature melting furnace, and smelting it into molten steel at a temperature of 1000 °C. The components of the high-strength stainless steel casting and the quality of each component The ratio is: carbon 0.06%, silicon 0.7%, manganese 0.5%, phosphorus 0.03%, sulfur 0.01%, chromium 16%, nickel 4%, titanium 0.04%, iron 78.66%;
[0030] b. Preheating the casting mold: Preheat the resin sand casting mold to 200°C, keep the temperature for 3 hours, and place an external cold iron on the outer wall of the resin sand casting mold, which can speed up the solidification of the intersecting parts of the ca...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap