Quality Management System

Through industrial and technological processes, G4 Valves and Microfusion offers superior quality products, following market demands and always seeking the best results for its customers. Customer satisfaction and continuous improvement processes are the foundation of its activities.

All the company's industrial processes are monitored by the “Quality Management System”. Any deviation or damage that could compromise the quality of the final product is immediately accused and corrected. This system acts preventively, detecting any failures that may occur in the manufacturing process.

The System adheres the following Quality Policy: 

Manufacture the solution in ball valves, microcast and PTFE parts, seeking continuous improvement and innovation, in order to guarantee the satisfaction of the interested parties.

Lab

The quality control team at G4 Valves and Microfusion has a laboratory to carry out tests and analyses, which attest to the quality of manufactured products according to the traceability needs of each customer, within the standards established by international quality standards.

Spectrometer
Spectrometer
Durometer
Durometer
Tensile Test
Tensile Test
Test Bench
Test Bench

Raw material tests

In addition to thoroughly evaluating and analyzing the Raw Material Suppliers' Certificates, G4 Valves and Microfusion performs the following tests to ensure the reliability of the product to its customer.

Density

Measures the density of colloidal and clean silica as raw material and in baths;

Gelificação dos Banhos

The quality of the binder is evaluated, determined by accelerating at room temperature conditions;

PH

Determines the pH value of raw materials and process products;

Drop Point

Test applied to waxes and their components in general. Check the melting/softening point of the wax;

Colloidal Silica Content

Describes the method for controlling silica content as a raw material;

Moisture content

Determination of the moisture content (in percentage) of the inputs, through the elimination of water by controlled heating, checking the difference in masses.

Product testing

Verification of factors that guarantee product quality G4 Valves and Microfusion.

Ícone dimensional
Dimensional

É realizada geralmente em uma amostragem de protótipos, antes de que toda a série de peças seja fundida

Ícone balão erlenmeyer
Químico

Análise química para determinação de cada liga

Ícone papel e lupa
Visual

Inspeção visual para detectar possíveis defeitos oriundos do processo de fabricação

Microfusion process

The microcasting process, also known as investment casting, precision casting or lost wax casting, is basically an economical way to manufacture components close to their final shape, with precision and excellent surface finish, in practically all types of alloys.

Benefits

  • Possibility of producing extremely intricate and complex shapes that would be impossible and impractical and/or more costly by other processes;
  • Parts are produced to full size, with little or no further machining;
  • Casting of parts in alloys that are difficult to machine later;
  • Elimination of loss of high value materials, such as inconels, stainless steels and others, during machining operations;
  • Production of parts with good density, uniformity, high strength and no need for rake angles;
  • Thorough surface finish, which is essential for a range of applications;
  • Great possibilities for design variations, with changing shapes, in order to adapt them to use.

Phases

The microfusion process is complex and rich in detail. It is defined in some specific and well-controlled parameters, so that it is possible to produce quality parts. Process parameters cannot be generalized. Each microfusion determines the process parameters depending on the raw material used, type of part and manufacturing environment. The following steps are part of this process:

  1. Tooling Manufacturing;
  2. Injection of the Model in Wax;
  3. Assembling the Wax Bundle;
  4. Ceramic Mold Manufacturing;
  5. Waxing;
  6. Calcination;
  7. Merger and Leakage;
  8. Demoulding;
  9. Finishing;
  10. Heat treatment;
  11. Inspection and Dispatch.

Made-to-measure

microcast parts

for the most diverse segments

find out
cardume.digital