A quick method for ensuring quality and mass center qualification of wax sand inert

Abstract

The application provides a quick method for filling wax sand inert objects to ensure quality and qualified mass center. The purpose is to solve the problems that when filling the wax sand inert objects, a plurality of filling materials are required, repeated testing and adjustment are required in the filling process, the filling quality of the wax sand inert objects is not high, the operation time is long, and the production requirements of high quality and high efficiency of the wax sand inert object filling product cannot be met, and the method can fill the wax sand inert objects to ensure the quality and qualified mass center, so that the wax sand inert object product is filled with high quality and high efficiency.

Description

Technical Field

[0001] This invention belongs to the field of product filling process technology, specifically involving the filling and process design of wax sand inert materials. Background Technology

[0002] Inert products are a type of product, mainly used to replace real products in various tests, demonstrations, and training. Wax-sand inert material filling is a major type of inert product filling. Wax-sand inert material filling is characterized by its simple process, readily available raw materials, and the fact that only temperature and physical state changes occur during the entire filling process, without any chemical reactions. It is environmentally friendly, safe, and efficient.

[0003] Previously, to ensure that products filled with wax-sand inert materials met quality and center-of-gravity requirements, it was necessary to first prepare sawdust as a material to adjust the product's weight and center of gravity. Secondly, adjusting the weight and center of gravity inevitably required adjusting the tightness of the inert filling. These methods not only involved multiple types of filling materials but also resulted in inconsistent filling tightness, necessitating repeated filling and testing. To reduce the composition of wax-sand inert materials and simplify the filling process, a rapid method is needed to ensure qualified quality and center of gravity, thereby improving production efficiency and the filling quality of wax-sand inert materials. Summary of the Invention

[0004] The purpose of this invention is to address the challenges of filling wax-sand inert materials, which requires a variety of materials, necessitates repeated testing and adjustments during the filling process, results in low filling quality, and leads to long operation times. This makes it difficult to meet the production requirements for high-quality and efficient wax-sand inert material filling products. The invention provides a rapid method that ensures the quality and core density of wax-sand inert materials, thereby achieving high-quality and efficient filling of wax-sand inert material products.

[0005] The purpose of this invention is to provide a rapid method for ensuring quality and centroid compliance when filling with wax-sand inert material, characterized by:

[0006] 1) Preparation of quartz sand coated with wax solution;

[0007] 2) Fill the shell containing wax-coated quartz sand into the shell that needs to be filled with an inert substance; the inert substance is a substance used to simulate the filling inside the shell of a real product (such as flammable powder, etc.); the inert substance of this invention is the wax, quartz sand, and iron sand filled inside the shell. The density of the wax-coated quartz sand is less than the density of the filling inside the shell of a real product;

[0008] 3〕Weigh the shell filled with wax-coated quartz sand in step 2〕 and calculate the difference m between this weight and the weight m2 of the shell after filling the actual product.

[0009] 4) Iron sand and wax solution, the weight of iron sand is 55% of the difference m, and the weight of wax solution is 45% of the difference m.

[0010] 5] Add the iron sand and wax water weighed in step 4] to the surface of the quartz sand coated with wax water inside the shell. Taking advantage of the property that the wax water sinks to the bottom after immersing in the quartz sand, the wax water and iron sand are respectively arranged at the bottom and surface of the inert material, forming a wax sand inert material product with the same centroid position as the real product, thereby ensuring that the quality and centroid of the wax sand inert material product meet the technical requirements.

[0011] Furthermore, in step 1], when preparing the quartz sand coated with wax, the quartz sand is heated in a container to a temperature higher than the melting point of the wax, the wax is added and mixed, and then the quartz sand is collected in a corner of the container and the wax is drained.

[0012] Further, in step 2], the quartz sand coated with wax is filled into the opening of the shell and then compacted.

[0013] The technical effects of this invention are undeniable, and this invention has the following effects:

[0014] (1) The present invention simplifies the composition of inert filling materials in the prior art by using only three components: quartz sand, wax and iron sand.

[0015] (2) This invention changes the previous situation where the tightness of the filling wax sand inert material was inconsistent, and can ensure the density of the quartz sand filling to the greatest extent.

[0016] (3) This invention changes the previous situation where there was no theoretical data to support the filling of wax sand inert material, and it was impossible to quickly achieve the filling of wax sand inert material to ensure product quality and center of gravity based on experience and intuition.

[0017] (4) The process of filling wax sand inert material in this invention is simple and practical, and can avoid the practical difficulties caused by directly adding iron sand to the core of the inert material. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments, but it should not be construed that the scope of the present invention is limited to the following embodiments. Various substitutions and modifications made based on ordinary technical knowledge and common practices in the art without departing from the above-described technical concept of the present invention should be included within the scope of protection of the present invention.

[0019] Example 1:

[0020] 1) Preparation of quartz sand coated with wax solution;

[0021] (1-1) Open the steam valve and introduce steam into the sand pot for frying quartz sand and steam into the wax pot.

[0022] (1-2) Pour the required amount of quartz sand into the sand pot, spread it evenly, and heat it.

[0023] (1-3) Add wax water to the heated quartz sand and use a copper rake to mix the quartz sand and wax water thoroughly;

[0024] (1-4) Use a copper rake to collect the wax-coated quartz sand in a corner of the casserole and drain the wax.

[0025] 2) Fill the shell containing wax-coated quartz sand into the shell that needs to be filled with an inert substance; the inert substance is the substance used to simulate the filling inside the shell of a real product; the inert substance of this invention is the wax, quartz sand, and iron sand filled inside the shell. The density of the wax-coated quartz sand is less than the density of the substance filling the shell of a real product;

[0026] In this embodiment, the quartz sand that has been drained of wax is loaded into the shell. During loading, wooden sticks and copper rods can be used to tamp and tighten the sand in layers.

[0027] 3〕Weigh the shell filled with wax-coated quartz sand in step 2〕 and calculate the difference m between this weight and the weight m2 of the shell after filling the actual product.

[0028] 4) Iron sand and wax solution, the weight of iron sand is 55% of the difference m, and the weight of wax solution is 45% of the difference m.

[0029] 5] The iron sand and wax water (after preheating) weighed in step 4] are added to the surface of the quartz sand coated with wax water inside the shell. Taking advantage of the property that the wax water sinks to the bottom after immersing in the quartz sand, the wax water and iron sand are respectively arranged at the bottom and surface of the inert material, forming a wax sand inert material product with the same centroid position as the real product, thereby ensuring that the quality and centroid of the wax sand inert material product meet the technical requirements.

[0030] Further, after completing step 5, the cooled inert product is subjected to preliminary quality and centroid measurements. Based on the test results, minor adjustments are made or wax is directly poured onto the surface to complete the filling.

[0031] Example 2:

[0032] The main technical solution of this embodiment is the same as that in the invention or in Embodiment 1. By simulating the uniform density of the main charge in a real product, heated and drained quartz sand, coated with wax and drained, is loaded into the shell. To ensure dense filling, the quartz sand is filled in layers and compacted. The weight of the loaded quartz sand is compared with the charge amount corresponding to the density of the main charge; the quartz sand filling density is 1.52 g / cm³. 3 ~1.56g / cm 3 It has a density approximately 0.1 g / cm³ lower than that of the main drug in the product. 3 ~0.2g / cm 3At this point, iron sand and wax are added to the surface of the quartz sand. Taking advantage of the characteristic that wax sinks after immersing in the quartz sand, the wax and iron sand are respectively positioned at the bottom and surface of the inert material, forming a wax-sand inert material with its center of mass aligned with that of the main charge. This ensures that the quality and center of mass of the wax-sand inert material product meet the technical requirements. The following raw materials, specifications, and weight percentages are included:

[0033] Component Name Specification Quality percentage Quartz sand 4-8 85％～90％ Microcrystalline wax <![CDATA[80 # ]]> 7.5％～5％ iron sand Φ2.5 7.5％～5％

Claims

1. A rapid method for filling with wax-sand inert material, characterized in that: 1) To prepare quartz sand coated with wax, the quartz sand is heated in a container to a temperature higher than the melting point of the wax, the wax is added and mixed, and then the quartz sand is collected in a corner of the container and the wax is drained. 2) Fill the shell containing wax-coated quartz sand into the shell that needs to be filled with inert material; the inert material is used to simulate the filling material in the shell of the real product; the density of the wax-coated quartz sand is less than the density of the filling material in the shell of the real product. 3) Weigh the shell filled with wax-coated quartz sand in step 2), and calculate the difference m between this weight m1 and the weight m2 of the shell after filling the actual product. 4) Iron sand and wax solution, the weight of iron sand is 55% of the difference m, and the weight of wax solution is 45% of the difference m; 5) Add the iron sand and wax water weighed in step 4) to the surface of the quartz sand coated with wax water inside the shell. Taking advantage of the property that the wax water sinks to the bottom after it is immersed in the quartz sand, the wax water and iron sand are respectively arranged at the bottom and the surface of the inert material to form a wax sand inert material product with the same centroid position as the real product.

2. The rapid method for filling wax sand inert material according to claim 1, characterized in that: In step 2), the quartz sand coated with wax is filled into the shell and then compacted.