Pre-shrinker quality appraisal

pre-shrinking machine is a kind of plastic machinery and equipment, mainly used for pretreatment in the plastic extrusion process. Its main function is to physically and chemically treat the original plastic particles to expand, soften, fuse, etc., thereby improving extrusion efficiency and product quality, and reducing quality defects and production costs during the extrusion process.
pre-shrinking machine is one of the indispensable and important equipment in the plastic extrusion process. Its quality and performance directly affect the quality and production efficiency of the product. Through pretreatment, the preshrinking machine can make the raw material particles form a uniform and continuous melt quality inside the machine, thereby reducing the number of scraps and quality defects generated during the production process and improving product quality and market competitiveness.
In the case of preshrinking machine quality appraisal, Zhongke Testing can provide preshrinking machine quality appraisal services.

1. Design quality: The shrinking machine should meet relevant design standards and specifications, have good structure and functions, and can meet production needs. At the same time, the design of the pre-shrinking machine should take into account factors such as service life and reliability to minimize breakdowns and maintenance.
2. Manufacturing quality: The manufacturing quality of the preshrinking machine should comply with relevant quality standards and requirements, including material selection, processing technology, assembly quality, surface treatment, etc. Attention should be paid to details during the manufacturing process to ensure that every part of the shrinking machine meets the requirements.
3. Safety and quality: The safety of the shrinking machine is an important factor in evaluating its quality. The pre-shrinking machine should have good safety protection devices, including safety doors, limit switches, overload protection, etc., to avoid accidents.
4. Performance quality: The performance quality of the pre-shrinking machine includes pre-compression ratio, pre-shrinking time, heating temperature and other indicators. These indicators should meet production needs and can be verified through testing and actual production.

The open-width felt shrinking machine purchased by a textile company did not meet the technical requirements agreed upon in the agreement, and a dispute arose with the equipment manufacturer.
was entrusted by the court to conduct an appraisal and analysis on "whether there are quality problems" in the pre-shrinking machine involved.
identification and analysis results: The
identification and analysis expert group discussed the relevant information and on-site investigation of the pre-shrinking machine involved in the case and made a comprehensive quality and technical analysis, and made the following suggestions and conclusions:
The two upper and lower felt positions of the open-width felt pre-shrinking machine involved in the case It was detected that the magnetic switch has failed, and other components, devices and their operating status comply with the quality requirements stipulated in the contract; the
open-width felt blanket pre-shrinking machine involved in the case has a pre-shrinking function for the warp and weft directions of cotton jersey samples and polyester-cotton jersey samples; it has a pre-shrinking function for the rayon jersey samples in the weft direction, but does not have a pre-shrinking function for the warp direction.