Pate de céramique

Pourquoi metterais t'on de la pate de ceramique sur le boulet avant de le seater dans la douille ?

https://www.facebook.com/photo.php?v=10152235597892953&set=vb.368638077952&type=2&theater

a peu pret a 1 min 15 sec

curieux moi aussi

de ce que j'ai lu sur les commentaires la céramique prolonge la vie du canon un peu comme le molycoat

je crois que C'est pour sealer le boulet pour evité les perte de pression

apres avoir vue le commentaire précedant je me demande comment sa pourrais prolonger la durer de vie

comme les pistons/cylindres des motos de compet (revêtement céramique) ?

solidité et friction réduite !!!!

Moi je n'oserait pas sur mes machines .

For those interested in the paste used in the video, here is a brief description:
The compound that Frank is applying between the two rear engraving bands was tested on the 25mm Bushmaster, and found to increase throat life from 40 rounds cyclic mode, to 2,000 rounds @ 200 rounds per minute.

I do not know ZA barrel life expectancy when used as Frank's video demonstrated, but it should increase significantly. ES holds in the low single digits as an incidental benefit. This is important within the ZA system for two primary reasons; First, I use eighteen grooves, which concentrates a great deal of heat in outside corners of the small lands at the forcing-cone. Second, ZA loads are going to be hot by design. I had the choice of moving to extremely expensive barrel alloys, or find a way to make iron-based alloys live longer in a high heat/pressure environment.

Questions hitting my in-box centered more on the ceramic lubricant than on other aspects of the ZA system... probably because it was mentioned this also works well with conventional bullets. However, I have not done a great deal of work on that application. The video is intended to give readers some idea of how to load banded projectiles in conjunction with the lubricant.

c'est bien comme dans les moteurs

en fait

dannylaferte a écrit:

For those interested in the paste used in the video, here is a brief description:
The compound that Frank is applying between the two rear engraving bands was tested on the 25mm Bushmaster, and found to increase throat life from 40 rounds cyclic mode, to 2,000 rounds @ 200 rounds per minute.

I do not know ZA barrel life expectancy when used as Frank's video demonstrated, but it should increase significantly. ES holds in the low single digits as an incidental benefit. This is important within the ZA system for two primary reasons; First, I use eighteen grooves, which concentrates a great deal of heat in outside corners of the small lands at the forcing-cone. Second, ZA loads are going to be hot by design. I had the choice of moving to extremely expensive barrel alloys, or find a way to make iron-based alloys live longer in a high heat/pressure environment.

Questions hitting my in-box centered more on the ceramic lubricant than on other aspects of the ZA system... probably because it was mentioned this also works well with conventional bullets. However, I have not done a great deal of work on that application. The video is intended to give readers some idea of how to load banded projectiles in conjunction with the lubricant.

Hun ,comprend pas ce langage ,ca aurait peut etre pu etre interessant.

ses la description du video

si tu lis ce que j'ai écrit sa traduit ce que dannylaferte as copier de facebook

sur un piston le ceramic coating n'augmente en rien sa solidité, par contre les metaux ont tendance a avoir des hot spot et la ceramique aide a uniformiser et dissiper la chaleur. (c'est difficile d'avoir un melange uniforme lors de la coulé)

beaucoup de personne n'aime pas du tout puisque ca brise et quand ca brise, ca passe dans la valve d'exhaust... pour un moteur de competition, c'est un plus puisque de toute facon tu l'ouvres souvent pour inspecter et tout remplacer.

je ne metterais pas de ceramic coating dans un moteur de "weekend warrior" a moins qu'il soit plus warrior que street used