Metal Support Member Oxide Layer Corrosion Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Liquid ejection heads with metal components are prone to corrosion when exposed to liquids, particularly those containing volatile components like moisture and solvents, which can lead to issues such as floating liquids sticking to the metal and causing corrosion.
Innovation Solution
The liquid ejection head incorporates a support member made of metal with a surface covered by an oxide cover layer of 1 μm or more in thickness, which provides corrosion resistance and prevents direct contact between the metal and the liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a metal support member is used in the liquid ejection head, then mechanical strength and structural stability are improved, but corrosion resistance deteriorates when liquid contacts the metal surface
Solution Approach 1:
The invention uses a composite structure consisting of a metal support member combined with an oxide cover layer. The metal provides mechanical strength while the oxide layer provides corrosion resistance, creating a composite material system that achieves both required properties simultaneously.
Solution Approach 2:
The oxide cover layer acts as an intermediary barrier between the metal support member and the liquid environment. This intermediate layer prevents direct contact between the corrosive liquid and the metal surface, thereby protecting the metal from corrosion while maintaining structural integrity.
2Reliability
If the oxide cover layer thickness is increased to improve corrosion resistance, then protection effectiveness is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The invention optimizes the oxide cover layer thickness to a specific parameter range (1 μm or more) to achieve effective corrosion protection. By establishing this quantitative parameter threshold, the invention balances protection effectiveness with manufacturing feasibility, avoiding excessive thickness that would complicate manufacturing.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The oxide cover layer effectively suppresses corrosion of the metal support member, even when liquids stick to it, ensuring the longevity and reliability of the liquid ejection head.
Implementation Method 1
the surface of the support member is covered with an oxide cover layer having a thickness of 1 μm or more
Data Source
AI summary
An object is to provide a liquid ejection head capable of suppressing corrosion. The liquid ejection head attachable to and detachable from a liquid ejection apparatus comprises a liquid ejection unit capable of ejecting liquid and a support member capable of supporting the liquid ejection unit. In the liquid, a predetermined component is includes. In the support member, metal is included. The surface of the support member is covered with an oxide cover layer having a thickness of 1 μm or more provided by predetermined treatment.