Deutsch: Injektion / Español: Inyección / Português: Injeção / Français: Injection / Italiano: Iniezione
Injection or Injected may refer to theinsertion of liquid into the body with a syringe (medical context) or injection molding, a technique for making parts from plastic material.

In the quality management context, 'injection' refers to the process of introducing or injecting a substance, typically a material or a fluid, into a specific location or system. Injection processes are widely used in various industries, including manufacturing, healthcare, and research, to achieve specific objectives and ensure quality control. Here are some examples of 'injection' in the quality management context:

1. Plastic injection molding: Plastic injection molding is a manufacturing process that involves injecting molten plastic material into a mold cavity. This process allows for the production of complex plastic parts with high precision and repeatability. Quality management in plastic injection molding includes monitoring and controlling parameters such as temperature, pressure, and injection speed to ensure the desired part quality, dimensional accuracy, and surface finish.

2. Injection of pharmaceuticals: In the healthcare industry, injections are commonly used to administer medications, vaccines, or other therapeutic substances directly into the body. Quality management in pharmaceutical injections involves ensuring the sterility, accuracy, and consistency of the injection process to deliver the correct dosage and maintain patient safety. Strict adherence to regulatory standards and quality control measures is essential to prevent contamination and maintain the efficacy of the injected substances.

3. Injection of fluids in chemical processes: In chemical industries, injection processes are utilized to introduce various fluids, such as catalysts, reagents, or additives, into chemical reactions or manufacturing processes. Quality management in chemical injection involves precise control of injection rates, volumes, and concentrations to achieve the desired chemical reactions, product quality, and process efficiency.

4. Injection of lubricants: In mechanical systems, injections of lubricants are performed to ensure smooth operation and reduce friction between moving parts. For example, in automotive manufacturing, precise injection of lubricants is critical to maintaining the performance and longevity of engines, transmissions, and other mechanical components. Quality management in lubricant injection includes monitoring and controlling the injection volume, timing, and distribution to optimize lubrication effectiveness and prevent component wear.

5. Injection of gases in metallurgy: In metallurgical processes, gases are often injected into molten metals to modify their properties or remove impurities. For instance, in steelmaking, gases like oxygen or argon can be injected to enhance the heat transfer, control chemical reactions, and reduce the carbon content in the steel. Quality management in gas injection processes involves precise control of gas flow rates, temperature, and injection methods to achieve the desired metallurgical properties and product quality.

Similar concepts and processes related to 'injection' in the quality management context include:

- Infusion: Infusion refers to the controlled introduction of fluids, such as medications, nutrients, or solutions, into the bloodstream or other body tissues. It is commonly used in medical settings for treatments, intravenous therapies, and fluid replacement. Quality management in infusion processes focuses on maintaining the sterility of equipment, ensuring accurate flow rates, and preventing medication errors or contamination.

- Injection molding of metals: Similar to plastic injection molding, metal injection molding (MIM) is a manufacturing process that involves injecting molten metal into a mold cavity to produce intricate metal parts. Quality management in metal injection molding includes controlling parameters such as temperature, pressure, and cooling to achieve the desired part quality, dimensional accuracy, and material properties.

- Injection of dyes or pigments: In various industries, such as printing, textiles, and plastics, injections of dyes or pigments are performed to introduce color or alter the appearance of materials. Quality management in dye or pigment injection involves ensuring consistent color matching, accurate dosing, and proper dispersion to achieve desired aesthetics and colorfastness.

- Injection of contrast agents: In medical imaging procedures, contrast agents are injected into the body to enhance the visibility of specific tissues or blood vessels during diagnostic tests, such as X-rays, CT scans, or MRIs. Quality management in contrast agent injection involves verifying the safety, effectiveness, and proper dosage of the injected agents to obtain accurate and reliable diagnostic results.

In summary, 'injection' in the quality management context refers to the controlled introduction of substances into specific locations or systems to achieve desired outcomes. Whether it is plastic injection molding, pharmaceutical injections, lubricant injection, or gas injection in metallurgy, ensuring quality in the injection processes involves precise control of parameters, adherence to standards and regulations, and continuous monitoring to achieve the desired product quality, performance, and safety.

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