Precision manufacturing, quality commitment: How Selection Hardware creates high-end customized aluminum alloy microphone housings

In the fiercely competitive field of electronic component manufacturing, Selection Hardware always takes "precision craftsmanship, quality first" as its core, providing customers with one-stop high-end die-casting solutions from design to delivery. Recently, we have successfully delivered an order for a high-precision spray painted aluminum alloy microphone housing. With our own die-casting factory, full process quality control system, and customized service capabilities, we have once again won the trust of our customers. The following is an analysis of the entire manufacturing process of this product.

1、 Materials and Processes: Precise Starting Point for Aluminum Alloy Die Casting
As an expert in the field of zinc/aluminum alloy die-casting, Selection Hardware relies on advanced equipment and technology from its holding die-casting factories to control quality from the source

Material selection: High strength aluminum alloy is used to ensure a balance between lightweight and durability of the casing, meeting the stringent structural stability requirements of audio equipment.

Precision mold development: Customize high-precision molds based on customer drawings, optimize flow channel design and cooling system, reduce porosity and shrinkage marks, and ensure consistent part dimensions.

Intelligent die-casting molding: By controlling temperature, pressure, and injection speed through automated die-casting equipment, complex structures can be formed in one go, reducing subsequent processing costs.

2、 Surface treatment: Empowered by our own paint factory to ensure quality assurance
The spray painting process directly determines the appearance texture and durability of the product. We leverage the advantage of our own paint spraying factory to achieve full process controllability:

Pre treatment optimization: Clean the surface through processes such as degreasing and passivation to enhance coating adhesion.

Multi layer spraying technology: using a three-layer spraying scheme of primer, colored paint, and protective varnish to ensure uniform color, scratch resistance, and corrosion resistance.

Environment and equipment control: The dust-free paint spraying workshop is equipped with an automated spraying line to accurately control the thickness of the paint film and avoid sagging or orange peel.

3、 Full process quality control: 100% inspection ensures zero defect delivery
The customer has extremely high requirements for the dimensional accuracy (tolerance ± 0.05mm) and surface effect of the microphone housing. Therefore, we have launched a "two-stage detection system":

Sampling stage:

Perform material composition analysis, 3D scanning size verification, and salt spray testing on the first batch of samples (48 hours without corrosion), and generate a visual inspection report for customer confirmation.

Mass production stage:

Online inspection: Each batch of parts is screened for appearance defects through a CCD vision system, and key dimensions are sampled in real-time using a coordinate measuring instrument.

Full inspection delivery: 100% manual re inspection before leaving the factory to ensure no scratches, particles, or missed spraying. The packaging is dust-proof and shockproof, and it is directly delivered to the customer's production line.

4、 Why choose Selection Hardware?
Vertical integration advantages: own die-casting factory+spray painting factory, shorten delivery time, and controllable cost.

Customized response: supports small-scale trial production to large-scale delivery, flexibly adapts to customer needs.

Data Transparency: Provide complete traceability files from material reports to testing data, allowing customers to rest assured.

Selection Hardware has been deeply involved in the die-casting industry for many years, always focusing on technology driven and quality assurance as its core competitiveness. Whether in the fields of consumer electronics, automotive components, or industrial equipment, we can transform your designs into high-quality products with our professional team, advanced equipment, and strict quality control.

Contact us immediately for exclusive die-casting solutions and limited time sample support!