Rigorous Double 85 testing ensures a robust quality safeguard for every product.
For precision electronic components, quality is never just a slogan—it is the confident ability to withstand extreme environments and a solemn commitment to earning our customers’ trust. Within our company’s quality‑control system, one key element is the Double 85 test. Constant Temperature and Humidity Testing Equipment It serves as the “hardcore guardian” of product quality, undergoing rigorous environmental reliability testing to eliminate even the slightest potential defects.
I. What is the Double 85 Test? A Stringent Benchmark for Product Reliability
Double 85 testing, which means 85°C high temperature + 85% relative humidity Long‑term, constant‑temperature and constant‑humidity aging tests are a core, mandatory evaluation method in the industry for assessing a product’s weather resistance and anti‑aging performance.
Unlike conventional, simplified sampling tests, this test closely replicates real-world extreme operating conditions—prolonged exposure to high‑temperature, humid environments; moisture ingress; thermal expansion and contraction of materials; and the cumulative effects of environmental stresses—mimicking actual service scenarios. By conducting long‑term, continuous… Stress test , precisely exposing latent product issues: performance degradation, structural cracking, material moisture absorption, parameter drift, and other hidden defects—none can hide.
Figure 1: Operational demonstration of Jiayou amorphous magnetic cores in a double-85 test chamber.
II. End-to-end implementation: Our quality control never pays lip service.
In daily production and quality‑inspection processes, the Double 85 equipment is a critical component of our company’s quality‑control system; before the magnetic cores leave the factory, Standardized procedures, fixed workflows, and rigorous implementation. 。
Pre-validation in the R&D phase Before finalizing the design of new products—whether in terms of structure, material formulation, or manufacturing process—a rigorous dual‑85 high‑low humidity thermal aging test must be conducted to proactively verify material compatibility and structural stability, address design weaknesses, and mitigate environmental‑related failure risks at the R&D stage.
Sampling inspection during mass production Mass‑production batches undergo scheduled, quantitative random sampling and are rigorously tested on equipment in accordance with established test standards. Temperature and humidity parameters are tightly controlled throughout the process, with all performance data recorded in real time and continuous monitoring maintained. Magnetic properties , changes in structural strength and insulation stability ensure consistent production-line processes and stable product quality.
Batch verification testing prior to shipment Before each batch of finished products leaves the factory, it undergoes an environmental reliability verification process. Only after successfully passing the 85‑day long‑term stress test—demonstrating no abnormalities in all performance metrics, no degradation in functionality, and no structural damage—can the product be deemed合格 and released, thereby preventing defective units from reaching customers.
Figure 2: Operational demonstration of Jiayou amorphous magnetic cores inside a Double-85 test chamber.
III. Refined management and control—every single process is handled with meticulous attention to detail.
Comprehensive quality control has never been about testing a single piece of equipment; it is a meticulously coordinated series of processes. In addition to the double‑85 damp‑heat aging test, we also provide complementary supporting measures. High-low temperature cycling test , mechanical strength testing, electrical parameter verification and numerous other rigorous inspections. Dedicated personnel are assigned to specific roles to oversee quality control, with test parameters strictly locked down, inspection data meticulously archived and retained, and any nonconforming products separately isolated for thorough review. We neither streamline processes nor lower standards nor shorten testing durations; instead, we maintain a meticulous approach and standardized procedures to ensure every production detail is tightly controlled.
Figure 3: JiaYou Amorphous Core Showcase
IV. Ensuring Long-Term Stability Through Rigorous Quality Control and Delivery
Magnetic components, as core parts of power equipment, directly affect the operational safety and service life of the entire system. We consistently adhere to: Quality speaks through testing; stability is ensured by robust processes. We reject unregulated production, vague quality inspections, and careless deliveries. Relying on state-of-the-art hardware testing equipment, well-established quality‑control processes, and stringent execution standards, we ensure that every product leaving our facility can withstand extreme heat and humidity, endure prolonged operational conditions, and stand the test of time in the marketplace.
Conclusion
Craftsmanship defines quality, and quality control ensures long-term success. Moving forward, Jiayou will continue to upgrade its testing equipment, refine its quality‑inspection processes, and strengthen process‑level controls, delivering a portfolio of magnetic cores that are highly stable, exceptionally reliable, and built to last—backed by rigorous manufacturing standards and robust testing capabilities. With demonstrable quality‑control excellence, we aim to become a trusted, long‑term partner for our customers.
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Anyang Kayo Amorphous Technology Co., Ltd. was established in 2011 with a registered capital of 20 million RMB. It is a high-tech enterprise focused on the research, development, production, sales...
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