Qingdao Wanguo Sanchuan Fiber Technology Co., Ltd Factory Tour

Carbon Fiber Production Workshop

Glass Fiber Production Workshop

Glass Fiber Fabric Production Workshop

Quality Inspection

Product Customization Process for Alkali-Free Glass Fiber Woven Roving

I. Demand Confirmation & Order Receipt

Core Objective: Accurately identify customer requirements for key parameters of alkali-free glass fiber woven roving (e.g., width, area weight, surface quality, special functional needs) to ensure order information is error-free.  

Operational Steps:

1. Customer Consultation & Requirement Collection  

  Sales representatives gather customer needs through offline exhibitions, e-commerce platforms, customer referrals, etc. Key inquiries include:  

 • Width requirements;  

 • Area weight (unit: g/㎡);  

 • Surface quality standards (e.g., no burrs, smooth texture);  

 • Special functional demands (e.g., insulation, fire resistance);  

 • Order quantity and delivery lead time.  

  Example: A customer requests "2.8-meter wide, 400g/㎡ alkali-free glass fiber woven roving for large transformer insulation, requiring no burrs, with delivery within 30 days."  

2. Order Review  

  A cross-functional team (sales, production, technology) evaluates the feasibility of the order:  

 • Production Capacity: Verify if existing equipment supports 2.8-meter width production;  

 • Raw Materials: Confirm inventory levels of alkali-free glass fiber roving; if custom roving is needed, assess procurement lead time (e.g., 7 days);  

 • Quality Control: Evaluate the difficulty of meeting surface quality requirements (e.g., adjusting loom tension to eliminate burrs);  

 • Delivery Lead Time: Estimate production timeline based on workflow; confirm if 30-day delivery is achievable given current capacity.  

3. Quotation & Contract Signing  

 • The technology department calculates costs (raw materials, labor, equipment depreciation), and the sales department provides a quotation;  

 • After mutual agreement, a formal contract is signed, specifying:  

    ◦ Product specifications (width, area weight, etc.);  

    ◦ Quantity;  

    ◦ Price;  

    ◦ Delivery lead time;  

    ◦ Quality standards;  

    ◦ Payment terms (e.g., 30% advance payment, 70% before shipment).  

II. Production Preparation

Core Objective: Prepare raw materials and adjust equipment parameters according to order requirements to ensure smooth production.  

Operational Steps:

1. Raw Material Procurement & Inspection  

 • The procurement department purchases alkali-free glass fiber roving per order specifications;  

 • The quality control (QC) department inspects raw materials for:  

    ◦ Yarn diameter;  

    ◦ Yarn strength;  

    ◦ Appearance (e.g., no broken filaments, uniform color).  

  Example: Procure 1000kg of alkali-free glass fiber roving; release to warehouse after passing inspection.  

2. Equipment Adjustment & Calibration  

 • The production department adjusts equipment parameters (e.g., loom width, tension settings) based on the order’s width requirement (e.g., 2.8 meters);  

 • Calibrate auxiliary devices (e.g., warp tensioners, weft feeders) to ensure compatibility with the specified area weight and weave pattern.  

III. Production & Quality Control

Core Objective: Produce in strict accordance with process documents to ensure products meet customer requirements.  

Operational Steps:

1. Weaving Process  

 • Warp Threading: Pass warp yarns through heddles and reed;  

 • Loom Startup: Initiate the loom for weft insertion (passing weft yarns through the warp yarn to form the fabric);  

 • Parameter Control: Maintain loom parameters (e.g., tension: 360-420N, speed: 500 rpm) to ensure a flat, uniform fabric surface with no loose or tight edges;  

 • Example: Weave 2.8-meter wide "04 cloth" with warp density of 100 threads/inch and weft density of 80 threads/inch; production rate: 100 meters/hour.  

2. Quality Inspection  

 The QC department inspects finished products for:  

 • Width: Measure with a tape measure (e.g., 2.8 meters ±5mm, compliant with customer requirements);  

 • Area Weight: Weigh using a precision balance;  

 • Surface Quality: Check for burrs, missed wefts, wrinkles (e.g., no burrs, compliant);  

 • Physical Properties: Test tensile strength (e.g., warp direction: 2100N/25mm, weft direction: 1600N/25mm).  

  Example: Sample 10 meters of fabric; results: width 2.8 meters, area weight 305g/㎡, no surface defects, tensile strength meets standards—judged as qualified.  

IV. Packaging & Shipping

Core Objective: Ensure products are undamaged during transit and delivered on time.  

Operational Steps:

1. Packaging  

 • Wrap finished fabric in moisture-proof bags (to prevent dampness) and place on pallets;  

 • Label pallets with: product name, width, area weight, quantity, production date.  

2. Shipping  

 • The logistics department arranges shipment via the agreed method (e.g., sea freight, air freight) to the customer’s designated location;  

 • Track logistics information (e.g., GPS) to ensure on-time delivery (within 30 days).  

V. After-Sales Service

Core Objective: Resolve customer issues during product use and improve satisfaction.  

Operational Steps:

1. Customer Feedback Collection  

  The sales department collects feedback via phone, email, etc. (e.g., "Fabric is flat and burr-free, meeting requirements"; "Hope to shorten next delivery lead time to 25 days").  

2. Quality Issue Handling  

 • If quality issues are reported (e.g., fabric wrinkles), the QC department immediately investigates the root cause (e.g., excessive loom tension);  

 • Propose solutions (e.g., adjust tension to 300N) and replace defective products (e.g., 100 meters) for the customer.  

3. Continuous Improvement  

 • The technology department optimizes production processes based on feedback (e.g., reduce delivery lead time to 25 days);  

 • The production department trains employees on skills (e.g., loom tension adjustment) to improve efficiency.  

Summary

The core of the alkali-free glass fiber woven roving customization process is "accurate demand identification → precise production execution → strict quality control → continuous service optimization." By integrating patented technologies, industry standards, and customer feedback, we ensure products meet customer requirements while enhancing production efficiency and satisfaction.  

• Resource Recycling: Methodology for producing circuit board glass substrates using alkali - free fiberglass waste silk
• Process Optimization: Composite device for preventing material stacking in new - generation material plates
• Advanced Material Applications: Equipment for treating artificial rib components with silicon carbide - matrix carbon fiber composites
• Automated Production: Integrated machinery solutions for glass fiber chopped strand mat packaging, fabric slitting, and production - line packing

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