• author：Admin
• source：Jiangsu Ruheng Intelligent Technology Co., Ltd.
• release time：2024-01-10

Control of the marble platform forging and finishing process. The finishing process is to clean up the measuring casting from the mold after cooling to obtain a measuring casting with a flawless surface. Control of the forging sand grinding process. The performance of the molding sand will directly affect the measuring casting. Therefore, the molding sand may have good air permeability, wet strength, fluidity, plasticity and flexibility, etc. Marble flat old sand - new sand - clay - coal powder - water, the mixing time is set at 6 to 7 minutes. After mixing, mix thoroughly for about 5 hours. After mixing, sift and loosen before use to make the molding sand loose. To improve breathability, mobility, etc.

To control the pouring process of marble slab casting, the casting water must be incubated and slag removed before pouring. During the pouring process, it must flow continuously and steadily to avoid sand holes caused by sand washing. When there is a fire, the leakage of casting water must be blocked in time. parts, and replenish the casting water to reduce defects such as cold separation and insufficient pouring.



The quality and precision of the marble platform surface are divided into three points:



1. Pay attention to temperature changes when scraping. If the heat treatment of the cast iron platform is done well and the room temperature does not change much, then the cast iron platform will not deform at all. However, if a certain part of the flat platform is directly exposed to the sun, Or if there are heat sources such as stoves around, the cast iron platform will be deformed. The purpose of fine scraping is to increase the surface accuracy, which will have little impact on the size. Therefore, pay attention to the sharpness and smoothness of the cutting edge, and make it 5° inclination with the cast iron platform.



2. The more scraping points, the smaller the knife mark should be, and the knife should be lighter, but not too light, otherwise the scraping points will not be deep, the display will not be obvious, and the points will be easily rubbed off, usually around 0.003mm.



3. The knife mark on the granite platform should be small, about 3mm wide and 6mm long. Each knife should be on a point. First, drop the knife in front of the point, press hard in the middle of the point, lift up after passing the point, and press the point when scraping. The size of the spots is divided into light and dark. Scrape all the big bright spots, open the middle spots and divide them into two small spots. The small spots can be left unscratched, and the small bright spots can be scraped off gently, so that the big scraped spots become into small dots, the middle scraping dot is divided into two small dots, the original small scraping dot becomes a large dot, and dots will appear in places where there were no scraping dots before.