Discussion of terms in the gtt 5611-1998 casting terminology
Gbt 5611—1998 castery terminology is a standard for the regulation and definition of terms related to the foundry industry. Subject
The joint recording of techniques, processes, equipment, materials and related management, testing, etc. In the field of casting
The total number of terms is approximately 1,500. These terms define accurately and normatively the relevant concepts in the field of casting, as engineering techniques
Communication between personnel provides standardized language。
Some of the terms in the 1998 castery terminology will be analysed and explained here。
1. Casting defects
Casting defects are those that arise during the casting process. Common defects in the casting process include air holes
Packs, aliens, etc. Reasons for these defects include inappropriate melting temperatures, poor flow of molten fluids, lack of mould materials
Appropriate and inappropriate. Prevention of casting defects can be based on control of production processes, enhanced testing and choice
Start with appropriate materials。
2. Modules
Stereotypes are essential equipment in casting and are used to make the cavity required for casting. The moulds vary according to the material
Categorized by sand, metal, ceramic, etc., which can be broken down into cast iron, cast steel, copper, etc
Alloy, plastic, etc. Of particular note, as technology continues to develop, 3d printing is gradually developing
Used in the manufacture of moulds。
Castery
Castery is the sum of a series of techniques, methods and processes used in foundry production. Castery includes vibrating sand
Casting, gravitational casting, low pressure casting, vacuum casting, etc
All have obvious effects。
4. Casting materials
Casting material means raw materials such as metals, alloys and ceramics used in casting. Casting materials divided by material type
Classes, which can be classified as iron alloys, casting aluminium alloys, copper alloys, etc., with different casting properties and special features
Point. During the casting process, the reasonable selection of suitable materials can improve the quality of the casting and reduce the probability of casting defects。
Smelting
Smelting is the process of melting metals, alloys or other substances. In casting, by smelting metal
And alloys to make the required smelts and obtain the castings through a specific process. We need a note during smelting
Intense control of smelting temperature, introduction of suitable smelting agents, and control of chemical composition of the smelting are ensuring production efficiency
The rate is accompanied by quality assurance of the casting。
Models
Models are models manufactured during casting to produce sand or casts, also known as model masters. Models
The success of casting is extremely important. Modeling requires the selection of suitable materials, precision
And strictly control the size error of the model。
In the light of the above, the gtt 5611-1998 casting terminology is important for the development and advancement of the foundry industry
Fan and lead. These casting terms have greatly facilitated the work of engineers through precise and normative definitions
Communication and communication between them also provide important safeguards to ensure the quality of casting production。
