Practical Guide to Exhibitions | Don't Just Look at Products—Asking the Right Questions Reveals the True Nature of a Supplier

01、How does your quality system ensure "batch-to-batch consistency"?

You can also ask:

· Is there comprehensive process control (rather than relying solely on FQC or OQC)?

· Are SPC or trend monitoring applied to critical dimensions/performance?

· How is traceability handled across batches (from raw materials → processing → finished product)?

Why this question matters:

· The biggest challenge with twin-screw components isn't whether they *can* be manufactured, but whether the next batch will perform just as well as the current one.

Screening logic:

· Simply stating "We have quality system certification" → Insufficient.

· Being able to clearly explain "process control methods" → Indicates a genuine system.

· Having batch traceability → Indicates excellent system implementation.

02、From raw materials to the finished product, where do you consider the "critical control points" to be, and why?

This is a question designed to test understanding regarding:

· Material composition/purity;

· Heat treatment consistency;

· Control of machining stresses and deformation.

Why it matters:

· True differentiation often lies not in the blueprints, but in the understanding of critical variables.

Screening logic:

· Vague answers (e.g., "good materials" or "good equipment") → Superficial understanding;

· Ability to identify specific "risk points" → Experienced.

03、"Which stages of your production process are most prone to issues, and how do you prevent them?"

This is a "reverse question" that works very well.

Why it matters:

· A mature enterprise is well aware of its own "risk points";

· An immature enterprise often simply claims, "We have no issues."

Screening logic:

· Answering "basically no issues" → Be wary;

· Able to identify specific issues + describe control methods → More credible.

04、How do you handle technical analysis and feedback internally when issues arise at a customer's site?

Key points to look for:

· Is there a standardized problem analysis process?

· Is there cross-departmental collaboration (e.g., process engineering, design, quality control)?

· Is there a database of past cases?

Why this matters: The twin-screw industry is a sector where optimization is typically driven by problem-solving.

Evaluation criteria:

· Merely stating "we provide pre-sales and after-sales support" → Weak

· Able to articulate the analysis process (or even cite specific cases) → Strong

05、How do you interpret the true challenges that "high torque/high load" conditions pose to the system?

A truly professional answer should address:

· Increased torque → loads on the core shaft + stress concentration at splines or connection points;

· Changes in the mechanism of force transmission between screw elements;

· Premature failure caused by uneven localized loading.

If the response is simply "our materials are better," you can generally conclude that their understanding is superficial; the core issue is fatigue failure, not instantaneous strength.

Under high-torque conditions, the question isn't merely whether the part will break, but whether it can operate reliably for six months, a year, or longer.

Key points to cover include:

· Cyclic loading; · Micro-crack propagation;

· Long-term stability. Anyone who mentions "fatigue" generally knows what they are talking about.

We look forward to meeting you at Chinaplas 2026!

Exhibition Details:

· Exhibition Name: Chinaplas 2026 (The International Exhibition on Plastics and Rubber Industries)

· Dates: April 21–24, 2026

· Venue: National Exhibition and Convention Center (Shanghai, Hongqiao)

· Our Booth: Hall 6.1, Booth D58