Engineering knowledgePrepared by Shenzhen Baoshengda Technology Co., Ltd.

Reading graphic overlay abrasion counts: fixed cycles versus wear endpoints

An abrasion count may describe a fixed-condition inspection or relate to a wear endpoint. Check the result format, cycle definition, contact material, load, motion, and specimen condition. Stopping before the endpoint does not establish service life.

Operator in blue workwear at an equipment control screen, used as a printing-process reference; this is not an abrasion test or a passing-result photograph

When reading a graphic overlay abrasion report, first establish whether it records the condition after a fixed cycle count or the count associated with a predefined wear endpoint. Then check how cycles are counted, the contact tool, load, stroke, speed, and specimen condition. Legible characters after a fixed count describe only the observation under those conditions. If testing stopped before the endpoint, that count does not establish service life or justify ranking the overlay against one tested by a different method.

Nidec's official JIMTOF 2026 exhibits page lists the exhibition at Tokyo Big Sight from October 26 to 31 and introduces equipment for five-axis machining and grinding, including the ZI35A internal gear grinding machine. This article uses the exhibition schedule and exhibit descriptions; the page does not state a publication date. It does not establish that the exhibits use graphic overlays, provide abrasion results for their operating areas, or show a Baoshengda supply relationship.

When moving from an equipment demonstration to reviewing your own new machine, a graphic overlay may be part of the operating area. Its appearance after a short trial is only a field observation. Engineers still need to ask whether the supplier's abrasion count represents a fixed-condition screening test or a test that reached a failure criterion. The guidance below explains these two types of results. It does not assess the exhibited machines or suggest improvised destructive rubbing tests on operating equipment.

Decide how the test will end before it starts

Taber's public Linear Abraser evaluation guidance distinguishes the cycles required to reach a predetermined endpoint from the appearance or condition after a fixed number of cycles. Possible observations include coating loss and changes in gloss or color. Visual evaluation calls for an agreed rating scale or pass/fail criteria. This source explains result formats; it does not establish that Baoshengda uses this instrument or make the guidance a universal acceptance standard for overlays.

Write the two plans separately. A fixed-count inspection needs an agreed count, observation areas, and acceptance criteria. An endpoint test needs a predefined endpoint and observation intervals. Characters remaining legible, a surface beginning to look glossy, and wear exposing the layer beneath the print are different observations. Do not select a criterion after seeing the report.

What the report actually recordsWhat it can establishWhat it cannot yet establish
The agreed count was completed, the specified area met the original criteria, and testing stoppedThis specimen met that requirement at this count under these conditionsThe actual failure count, years in service, or the machine's key operating life
The predefined endpoint was first found between successive observationsKeep the previous observation without the endpoint and the current one with it; report the observation range as the method requiresThe exact cycle of failure without continuous observation
The test stopped, the specimen was changed, or a clamping problem occurred before the planned countRecord the actual accumulated count, the reason for stopping, and the affected scopeCompletion or acceptance at the originally planned count
Two reports have different counts and different contact materials, loads, or motion pathsList the method differences first and arrange a comparison under the same conditions if neededBetter abrasion resistance based solely on the larger count

This table offers guidance for interpreting results, not a sampling or lot rejection standard. Specimen quantity, observation intervals, stopping conditions, and project limits belong in the approved specimen test plan. A surface appearance test also does not replace membrane-switch continuity, tactile response, or machine safety verification.

The same count does not establish the same contact process

The report should identify the method and revision, instrument and attachments, and the motion represented by one displayed cycle. A single stroke, a back-and-forth movement, and a rotary motion must not be treated as interchangeable counts. Confirm whether a return movement completes one cycle from the method and instrument instructions being used. Retain stroke length, the area covered by the path, and speed alongside the count.

Taber's abradant guidance lists materials with different abrasive actions and explains that tool condition is affected by load, the tested surface, and refacing frequency. A report therefore also needs the contact material's type and condition, total applied load, refacing or replacement arrangements, and the specific dry or wet conditions. Identify the medium and replenishment method separately for wet rubbing. Dry abrasion results do not establish resistance to cleaning chemicals.

For your own equipment proceeding to samples after the exhibition, engineers can first mark the characters, windows, or textured areas that operators will actually contact, then select representative specimens and a workable method. If temporary protective film still covers the specimen, confirm whether that film is the layer being tested. Drawings should identify the relationship between the finished surface, temporary film, and print layer. Do not remove a functional layer without authorization. If these conditions remain open, complete the information first; do not convert a brief demonstration experience into a cycle count.

Keep before-and-after evidence at the same location

Before testing, identify the specimen, artwork revision, and surface construction revision, and photograph the test area and its orientation. At the planned intervals, observe the same area and retain the actual accumulated count, character outlines, color or gloss changes, and the lighting and observation method. Record any tool refacing, reclamping, or liquid replenishment during the test. A final photo and a single pass label omit that history.

Shenzhen Baoshengda Technology Co., Ltd. (Baoshengda Technology) states in its testing and inspection guide that equipment, calibration, methods, specimens, conditions, criteria, and original records should correspond to the current project. For abrasion confirmation, include the result format, cycle definition, and events during the test in the project record. The guide itself is not a passing report for this specimen and sets no universal abrasion count.

Ask the supplier how this specimen will be tested and recorded

Baoshengda Technology's graphic overlay and keypad overlay information calls for appearance to be agreed against artwork, physical samples, and specified conditions, with abrasion and cleaning-chemical requirements tested separately. A standalone overlay does not include switch circuitry. If pressing a key must also produce an electrical signal, confirm the switch assembly and main-board interface separately; a surface report does not establish them.

When submitting requirements, include the panel drawing, test areas, actual contact or cleaning method, and the intended result format: inspection against specified criteria after a fixed count, or recording against a defined endpoint and observation interval. Ask the supplier to identify the workable method, specimen condition, test conditions, and open items for this project. Arrange testing after both parties confirm them. Equipment configuration, testing costs, conditions, and results remain subject to project documents and actual records.

For appearance baselines, see graphic overlay gloss, texture, and reference samples (Chinese). For cleaning media and operating conditions, see cleaning, temperature/humidity, and sealing RFQ inputs (Chinese). Review the graphic overlay information and submit the information through the contact page when preparing a specimen review. 中文版