Research On The Development Of Material Database And Technological Standard Query System For Plastem For Plastic Mould

The plastic mould matches with the plastic mold machine in the plastic processing industry, which gives the plastic product complete configuration and accurate size,it is widely used in various molding processing with the rapid development of plastic industry.With Chinese economic development,the plastic industry has a maintain growth with 10% in recent years,we have get a higher level technology requirements for the plastic mould which is closely related to the quality and production efficiency of the plastic products.Plastic mould has the complexity structural and accuracy size,the processing is difficult,the manufacturing process of plastic mould involves many factors,so the reasonale choice of plastic mould material and processing technonlgy standards will make sure the quality of the muld,increase the production,reduce the production costs.However,the material selection and technical standards query for the plastic mould by traditional methods can not meet modern industrial manufacturing,and the rapid development of computer technology can solve the problem.In this paper the material database and technonlogy standard query system for palsitc mould based on database technology,Visual FoxPro 6.0 was built,which can store and manage the information of plastic mould material and technology standards more better.This system is less demanding on the expert knowledge for the operator,it help the plastic mould company make correct processing program quickly,it improve the efficiency and has a positive significance for the producting and processing of plastic mould.Firstly,in this paper,it research the the select suitable material principles,the selection methods of material and the information compostion of plastic mould material and technical standards. And this paper alsodiccussed the design features of the database system and programming methods.Secondly,the structure and function of the database system were designed by the method of structured systems analysis and design.The database system includes four modules which is material database,technical standards database,system maintenance,user management.The material database module provides two functions of material query and report output;the technical standard database module also provides technical standard query and report output funchions;the system maintenance module provides the maintenance function for the base,the data information can be added,modified and deleted by the system administrator;the use management module provides four functions including modify password,modify user,add user,delete user.In addition,during the development in this system,it design the codes of precise query,fuzzy query,multiple conditions query,multi-condition quantitative query,it make the material query methods diversity for the material database module in this system;In the material data analysis,it established the relationship between the certain properties data by the Newton Interpolation model,so that it will make the data change from "no documented" into "well documented".At last, the material database and technonlogy standard query system for palsitc mould was developed completely,it has the features which user interface friendly,operation easily,query fast,application widly.The running of the example verifies the reliability and stability of the database system.