Rehabilitation of dissolution: What is the best way to avoid dissolution failures due to the "dissolution" problem?

Half a Field is not available for analysis:"DissolutionWhat is the best way to avoid a bad connection?

Failure of the joining process can lead to problems with the material, as well as problems with minor "dissolving" processes. In order to understand and control dissolution, it is important to understand that general dissolution deficiencies can be found in the information provided, and that the key to upgrading the product is the "backwardness" of the product. This note introduces the typical problems of trubular systems that are caused by inappropriate solvents, as well as the typical problems of solvents, as described by the solvent diagnostician.

General Information to Proceed I: Excessive Dissolution
Phenomenon: The material of the dissolving system is cut to the bottom and the base material is "えぐられる".

Cause analysis:

Excessive heating: The electric current is high and the melting speed is high.

Excessive Processing Time: In the case of Rondo Processing, the heating time is too long and the base material is dissolved in the Rondo material.

Inconsistency of HANDA/mother material：択択たはんだが母材対して強すぎる。

Optimisation of welding parameter and reduction of heat input for use in welding pallas.

Correct control of time keeping in Rongo

The activity is low, and the temperature is suitable for use.

Co-existing Information II:insufficiently soluble
Phenomenon: When you pay for a job, you will be able to work in a wide, ball-like manner.

Cause analysis:

Insufficient temperature: The temperature necessary to dissolve the base material in the actual melting process is not enough.

Surface cleanliness is low: acidified film, grease and oils prevent contact with the base material.

Poor Flux: The activity of the flux which is effectively dissolved by the acidified film is not very active, and is deteriorating.

policy of resolving

The heating unit is calibrated to ensure the correct temperature.

Cleaning procedures (acid washing, mechanical grinding, etc.) before joining are strictly enforced.

We have selected high-quality films for the volume of activities and have paid attention to the effective protection of the surrounding area.

Common Problems III: Development of Brittle Phases
The appearance of the weld is good, but the force is increased and brittle failure occurs.

Reason Analysis: Excessive weight between the base material andDissolution and ExtensionIn addition, hard and brittle intermetallic compounds are formed at the joint interface.

policy of resolving

The melting temperature and holding time are closely controlled.

Direct interaction of hazardous elements is prevented by setting up an intermediate layer between the base material and the honda.

[Console-toe-acoustic-mechanism CTA]
Theory is basic, but the current issue is the actual production environment which is changing. Dalian Fuhong Machinery Co., Ltd. provides backlighting and support for customers who are concerned about the recurrence of welding quality problems. We offer a range of services from material selection to engineering and quality inspection, as well as a range of other services. We will also provide you with a root cause analysis of any unsuitable content that is not available at the site!