Molding temperature is one of the core factors affecting the microstructure and macroscopic physical properties of disposable paddy fiber cutlerys. Rice husk fiber will experience thermal denaturation and relaxation of microfiber structure under high temperature environment. Appropriate high temperature can not only promote cross-linking between fibers, but also enhance the bonding between fibers and matrix, thereby improving the density and compressive strength of the material. However, temperature control needs to be precisely controlled. Too low temperature may lead to insufficient fiber bonding, which in turn causes problems such as interlayer separation, increased pores and insufficient strength of the finished disposable paddy fiber cutlery; while too high temperature may cause fiber coking and surface carbonization, and even cause local degradation, seriously affecting the mechanical properties and safety of the material. Therefore, ensuring the uniformity of heat conduction and accurate control of molding temperature is the basis for manufacturing high-quality rice husk fiber tableware.

Molding pressure is another important parameter that affects the density and shape retention of disposable paddy fiber cutlerys. Under high pressure conditions, the composite material can fully fill the mold cavity, ensuring that the contours of utensils such as knives, forks and spoons are clear and the edges are regular. Appropriate molding pressure helps to enhance the compaction of the internal structure, improve the bending and compression resistance, and reduce the generation of surface pores and bubbles. If the pressure is insufficient, it may lead to incomplete molding, loose structure and corner warping, which will significantly affect the service life of the disposable paddy fiber cutlery and the consumer experience. On the contrary, too high pressure may cause excessive compression and deformation of the fiber, and even damage the mold. Therefore, during the molding process, the pressure change needs to be monitored and regulated in real time by sensors to ensure that the pressure distribution in the mold cavity is reasonable and stable.

The reasonable setting of the molding time is also very important, which is directly related to the continuity of the effect of heat and pressure on the material, and thus affects the degree of curing and internal bonding state of the disposable paddy fiber cutlery. Appropriate holding time can promote the arrangement and shaping of the molecular chains of the composite material, enhance the dimensional stability and thermal deformation resistance of the material, and thus improve the reliability of the disposable paddy fiber cutlery in high temperature environment. If the holding time is too short, the material may not be fully cured, thereby increasing the risk of warping or fracture; while if the time is too long, it may reduce disposable paddy fiber cutleryion efficiency, and even cause surface damage or internal stress accumulation due to heat accumulation. Therefore, in the disposable paddy fiber cutleryion process, it is necessary to accurately set the cycle of each molding process according to the thickness of the disposable paddy fiber cutlery, the performance of the mold temperature control system and the thermal reaction characteristics of the material.

The design and processing accuracy of the mold directly affect the appearance quality and dimensional accuracy of the molded disposable paddy fiber cutlery. The higher the finish of the mold surface, the finer and smoother the texture of the molded disposable paddy fiber cutlery will be, which can effectively avoid the hidden dangers of food residue or bacterial growth caused by rough surface. At the same time, a reasonable mold cavity structure design can promote the smooth discharge of gas and reduce bubbles and stratification. The temperature balance control of the mold is also very critical, which can prevent warping, local carbonization or flow dead corners caused by uneven heat distribution. In the application of multi-cavity molds, it is even more necessary to ensure that the pressure and heat of each cavity are consistent to prevent inconsistent disposable paddy fiber cutlery performance or the expansion of dimensional errors.

During the demolding and cooling stages, the transition process of the material from hot solidification to a stable state at room temperature should not be ignored. If the cooling speed is improper or the demolding angle design is unreasonable, it is very easy to cause deformation, cracks or residual stress, thereby affecting the strength and appearance integrity of subsequent use. Through a reasonable cooling system layout and a flexible demolding structure, the above risks can be effectively reduced and the overall disposable paddy fiber cutleryion efficiency can be improved. To this end, some disposable paddy fiber cutleryion processes introduce cooling circulating water, air convection systems or heat exchange modules to optimize the cooling effect.