（1）对比法

(1) Comparative method

把检测数据与图样资料及平时记录的正常参数相比较来判断故障。对于无资料又无平时记录的电器元器件，可查阅相关手册或者产品说明书，也可以与同型号的完好电器元器件相比较。

Compare the test data with the drawing data and normal parameters recorded at ordinary times to determine the fault. For electrical components without data and normal records, you can refer to relevant manuals or product instructions, and also compare them with the intact electrical components of the same model.

电路中的电器元器件元件属于同样用途性质或多个元件共同控制同一设备时，可以利用其他相似的或同一电源的元件动作和数据情况来判断故障。

When the electrical components in the circuit belong to the same purpose or multiple components jointly control the same equipment, the actions and data of other similar or the same power supply components can be used to determine the fault.

（2）置转换元件法

(2) Transposition element method

为了保证山东焊接专机的利用率，某些电路的故障原因不易确定或检查时间过长时，利用相同焊接设备上可转换的同一性能良好的元器件实验，以证实故障是否由此电器在元器件引起。

In order to ensure the utilization rate of Shandong special welding machine, when the fault cause of some circuits is not easy to determine or the inspection time is too long, use the same component with good performance that can be converted on the same welding equipment to test to verify whether the fault is caused by the electrical appliance in the component.

运用转换元件法检查时应注意，当把原电器元器件拆下后，要认真检查是否已经损坏，只有肯定是由于该电器元器件本身因素造成损坏时，才能换上新电器元器件，这样可以防止新换元件再次损坏。

When using the conversion element method for inspection, it should be noted that when the original electrical components are removed, carefully check whether they have been damaged. Only when it is certain that the electrical components are damaged due to their own factors, can they be replaced with new electrical components, which can prevent the new components from being damaged again.

（3）逐步开路（或接入）法

(3) Stepwise open-circuit (or cut-in) method

焊接设备中多支路并联且控制较复杂的电路短路或接地时，一般有明显的外部表现，如冒烟、有烧焦痕迹等。电焊机内部或带有护罩的电路短路、接地时，除熔断器熔断外，不易发现其他外部现象，这种情况可采用逐步开路（或接入）法检查。

When multiple branches are connected in parallel and the circuit with complex control is short circuited or grounded in the welding equipment, there are usually obvious external manifestations, such as smoke, burning traces, etc. When the circuit inside the welding machine or with a shield is short-circuited or grounded, it is not easy to find other external phenomena except the fuse is blown, which can be checked by the gradual open-circuit (or access) method.

①逐步开路法：遇到难以检查的短路或接地故障，可重新更换熔断器熔体，把多支路电路，一路路逐步或地从电路中断开，然后通电试验，若熔断器一再熔断，故障就在刚刚断开的这条电路上。然后再将这条支路分成几段，逐段地接入电路。当接入某段电路时熔断器又熔断，故障就在这段电路及某电器元器件元件上。这种方法简单，但容易把损坏不严重的电器元器件元件彻底烧毁。

① Step by step open circuit method: In case of a short circuit or ground fault that is difficult to check, the fuse melt can be replaced, and the multi-branch circuit and one circuit can be gradually or emphatically disconnected from the circuit, and then the power-on test. If the fuse is blown repeatedly, the fault is on the circuit that has just been disconnected. Then the branch is divided into several sections and connected to the circuit section by section. When a circuit is connected, the fuse is blown again, and the fault is on this circuit and some electrical components. This method is simple, but it is easy to completely burn the electrical components that are not seriously damaged.

②逐步接入法：电路出现短路或接地故障时，换上新熔断器逐步或地将各支路一步一步地接入电源，重新试验。当接到某段时熔断器又熔断，故障就在刚刚接入的这条电路及其所包该文章讲述了焊接设备故障的检查方法与维修经验.含的电器元器件上。

② Step by step access method: when the circuit has a short circuit or ground fault, replace with a new fuse, gradually or emphatically connect each branch to the power supply step by step, and retest. When a certain section is connected, the fuse is blown again, and the fault lies in the circuit just connected and the electrical components included in the article. This article describes the inspection method and maintenance experience of welding equipment fault.

以上就是焊接专机维修可使用对比、置换元器件、逐步开路法的相关内容了，您对此有怎样的疑惑或者需求就来我们网站http://www.tayfsk.com咨询！

The above is the relevant content of the comparison, replacement of components and gradual opening method that can be used for the maintenance of special welding machines. If you have any doubts or needs about this, please come to our website http://www.tayfsk.com consulting service