CO2焊短路过程动特性与外特性的关系

CO2短路过渡焊在制造业上的应用非常广泛，对系统动特性有较高要求。该文结合电路理论和焊接短路过程的特点对过程动特性及其与外特性进行了细致的分析，突破了以往在外特性控制和动特性控制之间的关系上互不清楚、互不相关、相互分离的传统观念，认识到在CO2焊短路过渡过程中，动特性和外特性密切相关，既不能用外特性来解释动态过程；也不能认为动特性与外特性无关，动特性会受到外特性的制约，它们之间的关系可以用明确的数学语言进行分析，提出了动特性的最大响应能力及可控性的思想，分析结果有很大的理论意义。

Relation of dynamic and output characteristic in CO2 short circuit arc welding

CO 2 short circuit arc weld process,widely applied to manufacture industry,should be matched with such a power source system with good dynamic characteristic.Based on the careful analysis to the process dynamic characteristic and output characteristic according to the electric circuit theory and welding property of short circuiting transfer process,this paper breaks through the traditional idea,a confused and independent idea in relation to output characteristic control and dynamic characteristic control.Then a new viewpoint is put forward in which the CO 2 short circuiting arc welding process,a close relation occurs between output characteristic and dynamic characteristic.For one thing,the dynamic process can not be explained on the basis of the dynamic characteristic control.For another thing,the dynamic characteristic is related to the output characteristic and restricted by that.Furthermore,an idea about the fastest responding and controllable dynamic characteristic of a welding power source has been developed.Great theoretical meaning is attached to the analysis with clear math language to the relationship between the above two kinds of characteristics.